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tests/testthat/test-example_parkinsons.R
In multinma: Bayesian Network Meta-Analysis of Individual and Aggregate Data
# Generated by vignette example_parkinsons.Rmd: do not edit by hand
# Instead edit example_parkinsons.Rmd and then run precompile.R
skip_on_cran()
params <-
list(run_tests = FALSE)
## ---- code=readLines("children/knitr_setup.R"), include=FALSE-------------------------------------
## ---- include=FALSE-------------------------------------------------------------------------------
set.seed(1042020)
## ---- eval = FALSE--------------------------------------------------------------------------------
## library(multinma)
## options(mc.cores = parallel::detectCores())
## ----setup, echo = FALSE--------------------------------------------------------------------------
library(multinma)
nc <- switch(tolower(Sys.getenv("_R_CHECK_LIMIT_CORES_")),
"true" =, "warn" = 2,
parallel::detectCores())
options(mc.cores = nc)
## -------------------------------------------------------------------------------------------------
head(parkinsons)
## -------------------------------------------------------------------------------------------------
arm_net <- set_agd_arm(parkinsons,
study = studyn,
trt = trtn,
y = y,
se = se,
sample_size = n)
arm_net
## ----parkinsons_arm_network_plot------------------------------------------------------------------
plot(arm_net, weight_edges = TRUE, weight_nodes = TRUE)
## -------------------------------------------------------------------------------------------------
summary(normal(scale = 100))
## ---- eval=!params$run_tests----------------------------------------------------------------------
## arm_fit_FE <- nma(arm_net,
## trt_effects = "fixed",
## prior_intercept = normal(scale = 100),
## prior_trt = normal(scale = 10))
## ---- eval=params$run_tests, echo=FALSE-----------------------------------------------------------
arm_fit_FE <- nma(arm_net,
trt_effects = "fixed",
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 10),
iter = 10000)
## -------------------------------------------------------------------------------------------------
arm_fit_FE
## ---- eval=FALSE----------------------------------------------------------------------------------
## # Not run
## print(arm_fit_FE, pars = c("d", "mu"))
## ----arm_FE_pp_plot-------------------------------------------------------------------------------
plot_prior_posterior(arm_fit_FE)
## -------------------------------------------------------------------------------------------------
summary(normal(scale = 100))
summary(half_normal(scale = 5))
## ---- eval=!params$run_tests----------------------------------------------------------------------
## arm_fit_RE <- nma(arm_net,
## seed = 379394727,
## trt_effects = "random",
## prior_intercept = normal(scale = 100),
## prior_trt = normal(scale = 100),
## prior_het = half_normal(scale = 5),
## adapt_delta = 0.99)
## ---- eval=params$run_tests, echo=FALSE-----------------------------------------------------------
arm_fit_RE <- nowarn_on_ci(nma(arm_net,
seed = 379394727,
trt_effects = "random",
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 100),
prior_het = half_normal(scale = 5),
adapt_delta = 0.99,
iter = 10000))
## ----plot_arm_RE_pairs, fig.width = 6-------------------------------------------------------------
pairs(arm_fit_RE, pars = c("mu[4]", "d[3]", "delta[4: 3]", "tau"))
## -------------------------------------------------------------------------------------------------
arm_fit_RE
## ---- eval=FALSE----------------------------------------------------------------------------------
## # Not run
## print(arm_fit_RE, pars = c("d", "mu", "delta"))
## ----arm_RE_pp_plot-------------------------------------------------------------------------------
plot_prior_posterior(arm_fit_RE)
## -------------------------------------------------------------------------------------------------
(arm_dic_FE <- dic(arm_fit_FE))
## -------------------------------------------------------------------------------------------------
(arm_dic_RE <- dic(arm_fit_RE))
## ----arm_FE_resdev_plot---------------------------------------------------------------------------
plot(arm_dic_FE)
## ----arm_RE_resdev_plot---------------------------------------------------------------------------
plot(arm_dic_RE)
## ----arm_releff_FE, fig.height=3------------------------------------------------------------------
(arm_releff_FE <- relative_effects(arm_fit_FE, trt_ref = 1))
plot(arm_releff_FE, ref_line = 0)
## ----arm_releff_RE, fig.height=3------------------------------------------------------------------
(arm_releff_RE <- relative_effects(arm_fit_RE, trt_ref = 1))
plot(arm_releff_RE, ref_line = 0)
## ----arm_pred_FE, fig.height = 2------------------------------------------------------------------
arm_pred_FE <- predict(arm_fit_FE,
baseline = distr(qnorm, mean = -0.73, sd = 21^-0.5),
type = "response",
trt_ref = 1)
arm_pred_FE
plot(arm_pred_FE)
## ----arm_pred_RE, fig.height = 2------------------------------------------------------------------
arm_pred_RE <- predict(arm_fit_RE,
baseline = distr(qnorm, mean = -0.73, sd = 21^-0.5),
type = "response",
trt_ref = 1)
arm_pred_RE
plot(arm_pred_RE)
## ----arm_pred_RE_all, fig.height=8----------------------------------------------------------------
arm_pred_FE_studies <- predict(arm_fit_FE, type = "response")
arm_pred_FE_studies
plot(arm_pred_FE_studies)
## ----parkinsons_arm_ranks, fig.height=2-----------------------------------------------------------
(arm_ranks <- posterior_ranks(arm_fit_FE))
plot(arm_ranks)
## ----parkinson_arm_rankprobs----------------------------------------------------------------------
(arm_rankprobs <- posterior_rank_probs(arm_fit_FE))
plot(arm_rankprobs)
## ----parkinsons_cumrankprobs----------------------------------------------------------------------
(arm_cumrankprobs <- posterior_rank_probs(arm_fit_FE, cumulative = TRUE))
plot(arm_cumrankprobs)
## -------------------------------------------------------------------------------------------------
contr_net <- set_agd_contrast(parkinsons,
study = studyn,
trt = trtn,
y = diff,
se = se_diff,
sample_size = n)
contr_net
## ----parkinsons_contr_network_plot----------------------------------------------------------------
plot(contr_net, weight_edges = TRUE, weight_nodes = TRUE)
## -------------------------------------------------------------------------------------------------
summary(normal(scale = 100))
## ---- eval=!params$run_tests----------------------------------------------------------------------
## contr_fit_FE <- nma(contr_net,
## trt_effects = "fixed",
## prior_trt = normal(scale = 100))
## ---- eval=params$run_tests, echo=FALSE-----------------------------------------------------------
contr_fit_FE <- nma(contr_net,
trt_effects = "fixed",
prior_trt = normal(scale = 100),
iter = 10000)
## -------------------------------------------------------------------------------------------------
contr_fit_FE
## ----contr_FE_pp_plot-----------------------------------------------------------------------------
plot_prior_posterior(contr_fit_FE)
## -------------------------------------------------------------------------------------------------
summary(normal(scale = 100))
summary(half_normal(scale = 5))
## ---- eval=!params$run_tests----------------------------------------------------------------------
## contr_fit_RE <- nma(contr_net,
## seed = 1150676438,
## trt_effects = "random",
## prior_trt = normal(scale = 100),
## prior_het = half_normal(scale = 5),
## adapt_delta = 0.99)
## ---- eval=params$run_tests, echo=FALSE-----------------------------------------------------------
contr_fit_RE <- nowarn_on_ci(nma(contr_net,
seed = 1150676438,
trt_effects = "random",
prior_trt = normal(scale = 100),
prior_het = half_normal(scale = 5),
adapt_delta = 0.99,
iter = 10000))
## ----plot_contr_RE_pairs, fig.width = 6-----------------------------------------------------------
pairs(contr_fit_RE, pars = c("d[3]", "delta[4: 4 vs. 3]", "tau"))
## -------------------------------------------------------------------------------------------------
contr_fit_RE
## ---- eval=FALSE----------------------------------------------------------------------------------
## # Not run
## print(contr_fit_RE, pars = c("d", "delta"))
## ----contr_RE_pp_plot-----------------------------------------------------------------------------
plot_prior_posterior(contr_fit_RE)
## -------------------------------------------------------------------------------------------------
(contr_dic_FE <- dic(contr_fit_FE))
## -------------------------------------------------------------------------------------------------
(contr_dic_RE <- dic(contr_fit_RE))
## ----contr_FE_resdev_plot-------------------------------------------------------------------------
plot(contr_dic_FE)
## ----contr_RE_resdev_plot-------------------------------------------------------------------------
plot(contr_dic_RE)
## ----contr_releff_FE, fig.height=3----------------------------------------------------------------
(contr_releff_FE <- relative_effects(contr_fit_FE, trt_ref = 1))
plot(contr_releff_FE, ref_line = 0)
## ----contr_releff_RE, fig.height=3----------------------------------------------------------------
(contr_releff_RE <- relative_effects(contr_fit_RE, trt_ref = 1))
plot(contr_releff_RE, ref_line = 0)
## ----contr_pred_FE, fig.height = 2----------------------------------------------------------------
contr_pred_FE <- predict(contr_fit_FE,
baseline = distr(qnorm, mean = -0.73, sd = 21^-0.5),
type = "response",
trt_ref = 1)
contr_pred_FE
plot(contr_pred_FE)
## ----contr_pred_RE, fig.height = 2----------------------------------------------------------------
contr_pred_RE <- predict(contr_fit_RE,
baseline = distr(qnorm, mean = -0.73, sd = 21^-0.5),
type = "response",
trt_ref = 1)
contr_pred_RE
plot(contr_pred_RE)
## ---- eval=FALSE----------------------------------------------------------------------------------
## # Not run
## predict(contr_fit_FE, type = "response")
## ----parkinsons_contr_ranks, fig.height=2---------------------------------------------------------
(contr_ranks <- posterior_ranks(contr_fit_FE))
plot(contr_ranks)
## ----parkinsons_contr_rankprobs-------------------------------------------------------------------
(contr_rankprobs <- posterior_rank_probs(contr_fit_FE))
plot(contr_rankprobs)
## ----parkinsons_contr_cumrankprobs----------------------------------------------------------------
(contr_cumrankprobs <- posterior_rank_probs(contr_fit_FE, cumulative = TRUE))
plot(contr_cumrankprobs)
## -------------------------------------------------------------------------------------------------
studies <- parkinsons$studyn
(parkinsons_arm <- parkinsons[studies %in% 1:3, ])
(parkinsons_contr <- parkinsons[studies %in% 4:7, ])
## -------------------------------------------------------------------------------------------------
mix_arm_net <- set_agd_arm(parkinsons_arm,
study = studyn,
trt = trtn,
y = y,
se = se,
sample_size = n)
mix_contr_net <- set_agd_contrast(parkinsons_contr,
study = studyn,
trt = trtn,
y = diff,
se = se_diff,
sample_size = n)
mix_net <- combine_network(mix_arm_net, mix_contr_net)
mix_net
## ----parkinsons_mix_network_plot------------------------------------------------------------------
plot(mix_net, weight_edges = TRUE, weight_nodes = TRUE)
## -------------------------------------------------------------------------------------------------
summary(normal(scale = 100))
## ---- eval=!params$run_tests----------------------------------------------------------------------
## mix_fit_FE <- nma(mix_net,
## trt_effects = "fixed",
## prior_intercept = normal(scale = 100),
## prior_trt = normal(scale = 100))
## ---- eval=params$run_tests, echo=FALSE-----------------------------------------------------------
mix_fit_FE <- nma(mix_net,
trt_effects = "fixed",
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 100),
iter = 10000)
## -------------------------------------------------------------------------------------------------
mix_fit_FE
## ---- eval=FALSE----------------------------------------------------------------------------------
## # Not run
## print(mix_fit_FE, pars = c("d", "mu"))
## ----mix_FE_pp_plot-------------------------------------------------------------------------------
plot_prior_posterior(mix_fit_FE)
## -------------------------------------------------------------------------------------------------
summary(normal(scale = 100))
summary(half_normal(scale = 5))
## ---- eval=!params$run_tests----------------------------------------------------------------------
## mix_fit_RE <- nma(mix_net,
## seed = 437219664,
## trt_effects = "random",
## prior_intercept = normal(scale = 100),
## prior_trt = normal(scale = 100),
## prior_het = half_normal(scale = 5),
## adapt_delta = 0.99)
## ---- eval=params$run_tests, echo=FALSE-----------------------------------------------------------
mix_fit_RE <- nowarn_on_ci(nma(mix_net,
seed = 437219664,
trt_effects = "random",
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 100),
prior_het = half_normal(scale = 5),
adapt_delta = 0.99,
iter=10000))
## ----plot_mix_RE_pairs, fig.width = 6-------------------------------------------------------------
pairs(mix_fit_RE, pars = c("d[3]", "delta[4: 4 vs. 3]", "tau"))
## -------------------------------------------------------------------------------------------------
mix_fit_RE
## ---- eval=FALSE----------------------------------------------------------------------------------
## # Not run
## print(mix_fit_RE, pars = c("d", "mu", "delta"))
## ----mix_RE_pp_plot-------------------------------------------------------------------------------
plot_prior_posterior(mix_fit_RE)
## -------------------------------------------------------------------------------------------------
(mix_dic_FE <- dic(mix_fit_FE))
## -------------------------------------------------------------------------------------------------
(mix_dic_RE <- dic(mix_fit_RE))
## ----mix_FE_resdev_plot---------------------------------------------------------------------------
plot(mix_dic_FE)
## ----mix_RE_resdev_plot---------------------------------------------------------------------------
plot(mix_dic_RE)
## ----mix_releff_FE, fig.height=3------------------------------------------------------------------
(mix_releff_FE <- relative_effects(mix_fit_FE, trt_ref = 1))
plot(mix_releff_FE, ref_line = 0)
## ----mix_releff_RE, fig.height=3------------------------------------------------------------------
(mix_releff_RE <- relative_effects(mix_fit_RE, trt_ref = 1))
plot(mix_releff_RE, ref_line = 0)
## ----mix_pred_FE, fig.height = 2------------------------------------------------------------------
mix_pred_FE <- predict(mix_fit_FE,
baseline = distr(qnorm, mean = -0.73, sd = 21^-0.5),
type = "response",
trt_ref = 1)
mix_pred_FE
plot(mix_pred_FE)
## ----mix_pred_RE, fig.height = 2------------------------------------------------------------------
mix_pred_RE <- predict(mix_fit_RE,
baseline = distr(qnorm, mean = -0.73, sd = 21^-0.5),
type = "response",
trt_ref = 1)
mix_pred_RE
plot(mix_pred_RE)
## ----mix_pred_FE_all, fig.height=8----------------------------------------------------------------
mix_pred_FE_studies <- predict(mix_fit_FE, type = "response")
mix_pred_FE_studies
plot(mix_pred_FE_studies)
## ----parkinsons_mix_ranks, fig.height=2-----------------------------------------------------------
(mix_ranks <- posterior_ranks(mix_fit_FE))
plot(mix_ranks)
## ----parkinsons_mix_rankprobs---------------------------------------------------------------------
(mix_rankprobs <- posterior_rank_probs(mix_fit_FE))
plot(mix_rankprobs)
## ----parkinsons_mix_cumrankprobs------------------------------------------------------------------
(mix_cumrankprobs <- posterior_rank_probs(mix_fit_FE, cumulative = TRUE))
plot(mix_cumrankprobs)
## ----parkinsons_tests, include=FALSE, eval=params$run_tests---------------------------------------
#--- Test against TSD 2 results ---
library(testthat)
library(dplyr)
tol <- 0.05
tol_dic <- 0.1
#--- Arm-level data ---
# FE Relative effects
tsd_FE <- tribble(
~trt, ~mean, ~sd , ~median, ~lower, ~upper,
2 , -1.81, 0.33, -1.81 , -2.46 ,-1.16 ,
3 , -0.47, 0.49, -0.47 , -1.43 ,0.49 ,
4 , -0.52, 0.48, -0.52 , -1.46 ,0.43 ,
5 , -0.82, 0.52, -0.82 , -1.84 ,0.22 ,
) %>%
mutate(trt = ordered(trt, levels = levels(arm_net$treatments))) %>%
arrange(trt)
arm_releff_FE <- as.data.frame(arm_releff_FE)
test_that("FE relative effects", {
expect_equivalent(arm_releff_FE$mean, tsd_FE$mean, tolerance = tol)
expect_equivalent(arm_releff_FE$sd, tsd_FE$sd, tolerance = tol)
expect_equivalent(arm_releff_FE$`50%`, tsd_FE$median, tolerance = tol)
expect_equivalent(arm_releff_FE$`2.5%`, tsd_FE$lower, tolerance = tol)
expect_equivalent(arm_releff_FE$`97.5%`, tsd_FE$upper, tolerance = tol)
})
# RE Relative effects
tsd_RE <- tribble(
~trt, ~mean, ~sd , ~median, ~lower, ~upper,
2 , -1.85, 0.54, -1.84 , -2.91 ,-0.85 ,
3 , -0.50, 0.66, -0.50 , -1.78 ,0.75 ,
4 , -0.53, 0.65, -0.53 , -1.77 ,0.71 ,
5 , -0.83, 0.80, -0.83 , -2.35 ,0.69 ,
) %>%
mutate(trt = ordered(trt, levels = levels(arm_net$treatments))) %>%
arrange(trt)
arm_releff_RE <- as.data.frame(arm_releff_RE)
test_that("RE relative effects", {
expect_equivalent(arm_releff_RE$mean, tsd_RE$mean, tolerance = tol)
expect_equivalent(arm_releff_RE$`50%`, tsd_RE$median, tolerance = tol)
skip_on_ci()
expect_equivalent(arm_releff_RE$sd, tsd_RE$sd, tolerance = tol)
expect_equivalent(arm_releff_RE$`2.5%`, tsd_RE$lower, tolerance = tol)
expect_equivalent(arm_releff_RE$`97.5%`, tsd_RE$upper, tolerance = tol)
})
# Heterogeneity SD
arm_tau <- as.data.frame(summary(arm_fit_RE, pars = "tau"))
test_that("RE heterogeneity SD", {
expect_equivalent(arm_tau$mean, 0.4, tolerance = tol)
expect_equivalent(arm_tau$`50%`, 0.28, tolerance = tol)
skip_on_ci()
expect_equivalent(arm_tau$sd, 0.43, tolerance = tol)
expect_equivalent(arm_tau$`2.5%`, 0.01, tolerance = tol)
expect_equivalent(arm_tau$`97.5%`, 1.55, tolerance = tol)
})
# FE probabilities
tsd_pred_FE <- tribble(
~trt, ~mean, ~sd , ~median, ~lower, ~upper,
1 , -0.73, 0.22, -0.73 , -1.16 ,-0.30 ,
2 , -2.54, 0.40, -2.54 , -3.32 ,-1.76 ,
3 , -1.21, 0.53, -1.20 , -2.25 ,-0.15 ,
4 , -1.25, 0.53, -1.25 , -2.28 ,-0.21 ,
5 , -1.55, 0.57, -1.55 , -2.66 ,-0.43 ,
) %>%
mutate(trt = ordered(trt, levels = levels(arm_net$treatments))) %>%
arrange(trt)
arm_pred_FE <- as.data.frame(arm_pred_FE)
test_that("FE predicted probabilities at 3 years", {
expect_equivalent(arm_pred_FE$mean, tsd_pred_FE$mean, tolerance = tol)
expect_equivalent(arm_pred_FE$sd, tsd_pred_FE$sd, tolerance = tol)
expect_equivalent(arm_pred_FE$`50%`, tsd_pred_FE$median, tolerance = tol)
expect_equivalent(arm_pred_FE$`2.5%`, tsd_pred_FE$lower, tolerance = tol)
expect_equivalent(arm_pred_FE$`97.5%`, tsd_pred_FE$upper, tolerance = tol)
})
# RE probabilities
tsd_pred_RE <- tribble(
~trt, ~mean, ~sd , ~median, ~lower, ~upper,
1 , -0.73, 0.22, -0.73 , -1.16 ,-0.30 ,
2 , -2.58, 0.58, -2.57 , -3.72 ,-1.50 ,
3 , -1.23, 0.70, -1.23 , -2.57 ,0.10 ,
4 , -1.26, 0.69, -1.26 , -2.57 ,0.05 ,
5 , -1.57, 0.83, -1.56 , -3.14 ,0.02 ,
) %>%
mutate(trt = ordered(trt, levels = levels(arm_net$treatments))) %>%
arrange(trt)
arm_pred_RE <- as.data.frame(arm_pred_RE)
test_that("RE predicted probabilities at 3 years", {
expect_equivalent(arm_pred_RE$mean, tsd_pred_RE$mean, tolerance = tol)
expect_equivalent(arm_pred_RE$`50%`, tsd_pred_RE$median, tolerance = tol)
skip_on_ci()
expect_equivalent(arm_pred_RE$sd, tsd_pred_RE$sd, tolerance = tol)
expect_equivalent(arm_pred_RE$`2.5%`, tsd_pred_RE$lower, tolerance = tol)
expect_equivalent(arm_pred_RE$`97.5%`, tsd_pred_RE$upper, tolerance = tol)
})
# FE DIC
test_that("FE DIC", {
expect_equivalent(arm_dic_FE$resdev, 13.3, tolerance = tol_dic)
expect_equivalent(arm_dic_FE$pd, 11.0, tolerance = tol_dic)
expect_equivalent(arm_dic_FE$dic, 24.3, tolerance = tol_dic)
})
# RE DIC
test_that("RE DIC", {
expect_equivalent(arm_dic_RE$resdev, 13.6, tolerance = tol_dic)
expect_equivalent(arm_dic_RE$pd, 12.4, tolerance = tol_dic)
expect_equivalent(arm_dic_RE$dic, 26.0, tolerance = tol_dic)
})
#--- Contrast-level data ---
# Relative effects, heterogeneity, absolute effects are all equal across data scenarios
contr_releff_FE <- as.data.frame(contr_releff_FE)
test_that("FE relative effects", {
expect_equivalent(contr_releff_FE$mean, tsd_FE$mean, tolerance = tol)
expect_equivalent(contr_releff_FE$sd, tsd_FE$sd, tolerance = tol)
expect_equivalent(contr_releff_FE$`50%`, tsd_FE$median, tolerance = tol)
expect_equivalent(contr_releff_FE$`2.5%`, tsd_FE$lower, tolerance = tol)
expect_equivalent(contr_releff_FE$`97.5%`, tsd_FE$upper, tolerance = tol)
})
contr_releff_RE <- as.data.frame(contr_releff_RE)
test_that("RE relative effects", {
expect_equivalent(contr_releff_RE$mean, tsd_RE$mean, tolerance = tol)
expect_equivalent(contr_releff_RE$`50%`, tsd_RE$median, tolerance = tol)
skip_on_ci()
expect_equivalent(contr_releff_RE$sd, tsd_RE$sd, tolerance = tol)
expect_equivalent(contr_releff_RE$`2.5%`, tsd_RE$lower, tolerance = tol)
expect_equivalent(contr_releff_RE$`97.5%`, tsd_RE$upper, tolerance = tol)
})
# Heterogeneity SD
contr_tau <- as.data.frame(summary(contr_fit_RE, pars = "tau"))
test_that("RE heterogeneity SD", {
expect_equivalent(contr_tau$mean, 0.4, tolerance = tol)
expect_equivalent(contr_tau$`50%`, 0.28, tolerance = tol)
skip_on_ci()
expect_equivalent(contr_tau$sd, 0.43, tolerance = tol)
expect_equivalent(contr_tau$`2.5%`, 0.01, tolerance = tol)
expect_equivalent(contr_tau$`97.5%`, 1.55, tolerance = tol)
})
contr_pred_FE <- as.data.frame(contr_pred_FE)
test_that("FE predicted probabilities at 3 years", {
expect_equivalent(contr_pred_FE$mean, tsd_pred_FE$mean, tolerance = tol)
expect_equivalent(contr_pred_FE$sd, tsd_pred_FE$sd, tolerance = tol)
expect_equivalent(contr_pred_FE$`50%`, tsd_pred_FE$median, tolerance = tol)
expect_equivalent(contr_pred_FE$`2.5%`, tsd_pred_FE$lower, tolerance = tol)
expect_equivalent(contr_pred_FE$`97.5%`, tsd_pred_FE$upper, tolerance = tol)
})
contr_pred_RE <- as.data.frame(contr_pred_RE)
test_that("RE predicted probabilities at 3 years", {
expect_equivalent(contr_pred_RE$mean, tsd_pred_RE$mean, tolerance = tol)
expect_equivalent(contr_pred_RE$`50%`, tsd_pred_RE$median, tolerance = tol)
skip_on_ci()
expect_equivalent(contr_pred_RE$sd, tsd_pred_RE$sd, tolerance = tol)
expect_equivalent(contr_pred_RE$`2.5%`, tsd_pred_RE$lower, tolerance = tol)
expect_equivalent(contr_pred_RE$`97.5%`, tsd_pred_RE$upper, tolerance = tol)
})
test_that("Error message when using predict() on only contrast data", {
expect_error(predict(contr_fit_FE),
"No arm-based data \\(IPD or AgD\\) in network")
})
# FE DIC
test_that("FE DIC", {
expect_equivalent(contr_dic_FE$resdev, 6.3, tolerance = tol_dic)
expect_equivalent(contr_dic_FE$pd, 4.0, tolerance = tol_dic)
expect_equivalent(contr_dic_FE$dic, 10.3, tolerance = tol_dic)
})
# RE DIC
test_that("RE DIC", {
expect_equivalent(contr_dic_RE$resdev, 6.6, tolerance = tol_dic)
expect_equivalent(contr_dic_RE$pd, 5.5, tolerance = tol_dic)
expect_equivalent(contr_dic_RE$dic, 12.1, tolerance = tol_dic)
})
# Test contrast-data rows in incorrect order
park_reorder <- sample_frac(parkinsons, size = 1, replace = FALSE)
reorder_net <- set_agd_contrast(park_reorder,
study = studyn,
trt = trtn,
y = diff,
se = se_diff,
sample_size = n)
reorder_fit_FE <- nma(reorder_net,
seed = 1878819627,
trt_effects = "fixed",
prior_trt = normal(scale = 100),
iter = 10000)
reorder_fit_RE <- nowarn_on_ci(nma(reorder_net,
seed = 1147315,
trt_effects = "random",
prior_trt = normal(scale = 100),
prior_het = half_normal(scale = 5),
adapt_delta = 0.99,
iter = 10000))
expect_equivalent_nma_summary <- function(object, expected, ...) {
act <- quasi_label(enquo(object), arg = "object")
exp <- quasi_label(enquo(expected), arg = "expected")
comp <- compare(act$val %>% as.data.frame() %>% select(-c(Bulk_ESS, Tail_ESS, Rhat)),
exp$val %>% as.data.frame() %>% select(-c(Bulk_ESS, Tail_ESS, Rhat)),
...)
expect(comp$equal, sprintf("%s not equal to %s.\n%s",
act$lab, exp$lab, comp$message))
invisible(act$val)
}
test_that("Analysis of reordered contrast data gives same results", {
expect_equivalent_nma_summary(relative_effects(reorder_fit_FE, trt_ref = 1),
contr_releff_FE,
tolerance = tol)
expect_equivalent_nma_summary(predict(reorder_fit_FE,
baseline = distr(qnorm, mean = -0.73, sd = 21^-0.5),
type = "response",
trt_ref = 1),
contr_pred_FE,
tolerance = tol)
expect_equivalent(dic(reorder_fit_FE)$resdev, contr_dic_FE$resdev, tolerance = tol_dic)
expect_equivalent(dic(reorder_fit_FE)$pd, contr_dic_FE$pd, tolerance = tol_dic)
expect_equivalent(dic(reorder_fit_FE)$dic, contr_dic_FE$dic, tolerance = tol_dic)
expect_equivalent(dic(reorder_fit_RE)$resdev, contr_dic_RE$resdev, tolerance = tol_dic)
expect_equivalent(dic(reorder_fit_RE)$pd, contr_dic_RE$pd, tolerance = tol_dic)
expect_equivalent(dic(reorder_fit_RE)$dic, contr_dic_RE$dic, tolerance = tol_dic)
skip_on_ci()
expect_equivalent_nma_summary(relative_effects(reorder_fit_RE, trt_ref = 1),
contr_releff_RE,
tolerance = tol)
expect_equivalent_nma_summary(predict(reorder_fit_RE,
baseline = distr(qnorm, mean = -0.73, sd = 21^-0.5),
type = "response",
trt_ref = 1),
contr_pred_RE,
tolerance = tol)
expect_equivalent_nma_summary(summary(reorder_fit_RE, pars = "tau"),
contr_tau,
tolerance = tol)
})
#--- Mixed data ---
# Relative effects, heterogeneity, absolute effects are all equal across data scenarios
mix_releff_FE <- as.data.frame(mix_releff_FE)
test_that("FE relative effects", {
expect_equivalent(mix_releff_FE$mean, tsd_FE$mean, tolerance = tol)
expect_equivalent(mix_releff_FE$sd, tsd_FE$sd, tolerance = tol)
expect_equivalent(mix_releff_FE$`50%`, tsd_FE$median, tolerance = tol)
expect_equivalent(mix_releff_FE$`2.5%`, tsd_FE$lower, tolerance = tol)
expect_equivalent(mix_releff_FE$`97.5%`, tsd_FE$upper, tolerance = tol)
})
mix_releff_RE <- as.data.frame(mix_releff_RE)
test_that("RE relative effects", {
expect_equivalent(mix_releff_RE$mean, tsd_RE$mean, tolerance = tol)
expect_equivalent(mix_releff_RE$`50%`, tsd_RE$median, tolerance = tol)
skip_on_ci()
expect_equivalent(mix_releff_RE$sd, tsd_RE$sd, tolerance = tol)
expect_equivalent(mix_releff_RE$`2.5%`, tsd_RE$lower, tolerance = tol)
expect_equivalent(mix_releff_RE$`97.5%`, tsd_RE$upper, tolerance = tol)
})
# Heterogeneity SD
mix_tau <- as.data.frame(summary(mix_fit_RE, pars = "tau"))
test_that("RE heterogeneity SD", {
expect_equivalent(mix_tau$mean, 0.4, tolerance = tol)
expect_equivalent(mix_tau$`50%`, 0.28, tolerance = tol)
skip_on_ci()
expect_equivalent(mix_tau$sd, 0.43, tolerance = tol)
expect_equivalent(mix_tau$`2.5%`, 0.01, tolerance = tol)
expect_equivalent(mix_tau$`97.5%`, 1.55, tolerance = tol)
})
mix_pred_FE <- as.data.frame(mix_pred_FE)
test_that("FE predicted probabilities at 3 years", {
expect_equivalent(mix_pred_FE$mean, tsd_pred_FE$mean, tolerance = tol)
expect_equivalent(mix_pred_FE$sd, tsd_pred_FE$sd, tolerance = tol)
expect_equivalent(mix_pred_FE$`50%`, tsd_pred_FE$median, tolerance = tol)
expect_equivalent(mix_pred_FE$`2.5%`, tsd_pred_FE$lower, tolerance = tol)
expect_equivalent(mix_pred_FE$`97.5%`, tsd_pred_FE$upper, tolerance = tol)
})
mix_pred_RE <- as.data.frame(mix_pred_RE)
test_that("RE predicted probabilities at 3 years", {
expect_equivalent(mix_pred_RE$mean, tsd_pred_RE$mean, tolerance = tol)
expect_equivalent(mix_pred_RE$`50%`, tsd_pred_RE$median, tolerance = tol)
skip_on_ci()
expect_equivalent(mix_pred_RE$sd, tsd_pred_RE$sd, tolerance = tol)
expect_equivalent(mix_pred_RE$`2.5%`, tsd_pred_RE$lower, tolerance = tol)
expect_equivalent(mix_pred_RE$`97.5%`, tsd_pred_RE$upper, tolerance = tol)
})
# FE DIC
test_that("FE DIC", {
expect_equivalent(mix_dic_FE$resdev, 9.3, tolerance = tol_dic)
expect_equivalent(mix_dic_FE$pd, 7.0, tolerance = tol_dic)
expect_equivalent(mix_dic_FE$dic, 16.3, tolerance = tol_dic)
})
# RE DIC
test_that("RE DIC", {
expect_equivalent(mix_dic_RE$resdev, 9.6, tolerance = tol_dic)
expect_equivalent(mix_dic_RE$pd, 8.5, tolerance = tol_dic)
expect_equivalent(mix_dic_RE$dic, 18.1, tolerance = tol_dic)
})
# --- Check UME models ---
arm_fit_FE_UME <- nma(arm_net,
trt_effects = "fixed",
consistency = "ume",
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 10),
iter = 10000)
# NOTE: RE UME models are not really tractable - lots of divergences - not
# enough data to estimate tau
mix_fit_FE_UME <- nma(mix_net,
trt_effects = "fixed",
consistency = "ume",
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 100),
iter = 10000)
test_that("Arm/Mixed UME results are the same", {
expect_equivalent_nma_summary(summary(arm_fit_FE_UME, pars = "d"),
summary(mix_fit_FE_UME, pars = "d"),
tolerance = tol)
})
# NOTE: Contrast (and reordered contrast) results are different, since the
# choice of independent contrasts is based on the "observed" baseline arms in
# the data rather than the treatment ordering
contr_fit_FE_UME <- nma(contr_net,
trt_effects = "fixed",
consistency = "ume",
prior_trt = normal(scale = 100),
iter = 10000)
reorder_fit_FE_UME <- nma(reorder_net,
seed = 1878819627,
trt_effects = "fixed",
consistency = "ume",
prior_trt = normal(scale = 100),
iter = 10000)
test_that("Contr/Reordered UME results are the same", {
expect_equivalent_nma_summary(summary(contr_fit_FE_UME, pars = "d"),
summary(reorder_fit_FE_UME, pars = "d"),
tolerance = tol)
})
# --- Test regression models with contrast data ---
park_dummy <- dplyr::mutate(parkinsons, x1 = rnorm(dplyr::n(), 0, 1))
arm_net_reg <- set_agd_arm(park_dummy,
study = studyn,
trt = trtn,
y = y,
se = se,
sample_size = n)
arm_fit_FE_reg <- nma(arm_net_reg,
trt_effects = "fixed",
regression = ~x1:.trt,
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 10),
prior_reg = normal(scale = 1),
iter = 10000)
contr_net_reg <- set_agd_contrast(park_dummy,
study = studyn,
trt = trtn,
y = diff,
se = se_diff,
sample_size = n)
contr_fit_FE_reg <- nma(contr_net_reg,
trt_effects = "fixed",
regression = ~x1:.trt,
prior_trt = normal(scale = 100),
prior_reg = normal(scale = 1),
iter = 10000)
mix_net_reg <- combine_network(set_agd_arm(park_dummy[studies %in% 1:3, ],
study = studyn,
trt = trtn,
y = y,
se = se,
sample_size = n),
set_agd_contrast(park_dummy[studies %in% 4:7, ],
study = studyn,
trt = trtn,
y = diff,
se = se_diff,
sample_size = n))
mix_fit_FE_reg <- nma(mix_net_reg,
trt_effects = "fixed",
regression = ~x1:.trt,
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 100),
prior_reg = normal(scale = 1),
iter = 10000)
reorder_net_reg <- set_agd_contrast(sample_frac(park_dummy, size = 1, replace = FALSE),
study = studyn,
trt = trtn,
y = diff,
se = se_diff,
sample_size = n)
reorder_fit_FE_reg <- nma(reorder_net_reg,
seed = 1878819627,
trt_effects = "fixed",
regression = ~x1:.trt,
prior_trt = normal(scale = 100),
prior_reg = normal(scale = 1),
iter = 10000)
test_that("Regression models work with contrast data", {
expect_equivalent_nma_summary(summary(arm_fit_FE_reg, pars = c("d", "beta")),
summary(contr_fit_FE_reg, pars = c("d", "beta")),
tolerance = tol)
expect_equivalent_nma_summary(summary(arm_fit_FE_reg, pars = c("d", "beta")),
summary(mix_fit_FE_reg, pars = c("d", "beta")),
tolerance = tol)
expect_equivalent_nma_summary(summary(contr_fit_FE_reg, pars = c("d", "beta")),
summary(reorder_fit_FE_reg, pars = c("d", "beta")),
tolerance = tol)
})
test_that("Error message when using predict() on only contrast data", {
expect_error(predict(contr_fit_FE_reg),
"No arm-based data \\(IPD or AgD\\) in network")
})
# ML-NMR regression models too
park_dummy_mlnmr <- dplyr::mutate(parkinsons,
x1_mean = rnorm(dplyr::n(), 0, 1),
x1_sd = runif(dplyr::n(), 0.1, 1))
arm_net_mlnmr <- set_agd_arm(park_dummy_mlnmr,
study = studyn,
trt = trtn,
y = y,
se = se,
sample_size = n) %>%
add_integration(x1 = distr(qnorm, x1_mean, x1_sd), n_int = 10)
arm_fit_FE_mlnmr <- nma(arm_net_mlnmr,
trt_effects = "fixed",
regression = ~x1:.trt,
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 10),
prior_reg = normal(scale = 1),
iter = 20000, save_warmup = FALSE)
contr_net_mlnmr <- set_agd_contrast(park_dummy_mlnmr,
study = studyn,
trt = trtn,
y = diff,
se = se_diff,
sample_size = n) %>%
add_integration(x1 = distr(qnorm, x1_mean, x1_sd), n_int = 10)
contr_fit_FE_mlnmr <- nma(contr_net_mlnmr,
trt_effects = "fixed",
regression = ~x1:.trt,
prior_trt = normal(scale = 100),
prior_reg = normal(scale = 1),
iter = 20000, save_warmup = FALSE)
mix_net_mlnmr <- combine_network(set_agd_arm(park_dummy_mlnmr[studies %in% 1:3, ],
study = studyn,
trt = trtn,
y = y,
se = se,
sample_size = n),
set_agd_contrast(park_dummy_mlnmr[studies %in% 4:7, ],
study = studyn,
trt = trtn,
y = diff,
se = se_diff,
sample_size = n)) %>%
add_integration(x1 = distr(qnorm, x1_mean, x1_sd), n_int = 10)
mix_fit_FE_mlnmr <- nma(mix_net_mlnmr,
trt_effects = "fixed",
regression = ~x1:.trt,
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 100),
prior_reg = normal(scale = 1),
iter = 20000, save_warmup = FALSE)
reorder_net_mlnmr <- set_agd_contrast(sample_frac(park_dummy_mlnmr, size = 1, replace = FALSE),
study = studyn,
trt = trtn,
y = diff,
se = se_diff,
sample_size = n) %>%
add_integration(x1 = distr(qnorm, x1_mean, x1_sd), n_int = 10)
reorder_fit_FE_mlnmr <- nma(reorder_net_mlnmr,
seed = 1878819627,
trt_effects = "fixed",
regression = ~x1:.trt,
prior_trt = normal(scale = 100),
prior_reg = normal(scale = 1),
iter = 20000, save_warmup = FALSE)
test_that("ML-NMR models work with contrast data", {
expect_equivalent_nma_summary(summary(arm_fit_FE_mlnmr, pars = c("d", "beta")),
summary(contr_fit_FE_mlnmr, pars = c("d", "beta")),
tolerance = tol)
expect_equivalent_nma_summary(summary(arm_fit_FE_mlnmr, pars = c("d", "beta")),
summary(mix_fit_FE_mlnmr, pars = c("d", "beta")),
tolerance = tol)
expect_equivalent_nma_summary(summary(contr_fit_FE_mlnmr, pars = c("d", "beta")),
summary(reorder_fit_FE_mlnmr, pars = c("d", "beta")),
tolerance = tol)
})
test_that("Error message when using predict() on only contrast data", {
expect_error(predict(contr_fit_FE_mlnmr),
"No arm-based data \\(IPD or AgD\\) in network")
})
test_that("Robust to custom options(contrasts) settings", {
arm_fit_FE_SAS <- withr::with_options(list(contrasts = c(ordered = "contr.SAS",
unordered = "contr.SAS")),
nma(arm_net,
trt_effects = "fixed",
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 10),
iter = 10000))
expect_equivalent_nma_summary(summary(arm_fit_FE_SAS), summary(arm_fit_FE),
tolerance = tol)
expect_equivalent_nma_summary(relative_effects(arm_fit_FE_SAS), relative_effects(arm_fit_FE),
tolerance = tol)
contr_fit_FE_SAS <- withr::with_options(list(contrasts = c(ordered = "contr.SAS",
unordered = "contr.SAS")),
nma(contr_net,
trt_effects = "fixed",
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 10),
iter = 10000))
expect_equivalent_nma_summary(summary(contr_fit_FE_SAS), summary(contr_fit_FE),
tolerance = tol)
expect_equivalent_nma_summary(relative_effects(contr_fit_FE_SAS), relative_effects(contr_fit_FE),
tolerance = tol)
mix_fit_FE_SAS <- withr::with_options(list(contrasts = c(ordered = "contr.SAS",
unordered = "contr.SAS")),
nma(mix_net,
trt_effects = "fixed",
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 10),
iter = 10000))
expect_equivalent_nma_summary(summary(mix_fit_FE_SAS), summary(mix_fit_FE),
tolerance = tol)
expect_equivalent_nma_summary(relative_effects(mix_fit_FE_SAS), relative_effects(mix_fit_FE),
tolerance = tol)
})
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# Generated by vignette example_parkinsons.Rmd: do not edit by hand
# Instead edit example_parkinsons.Rmd and then run precompile.R
skip_on_cran()
params <-
list(run_tests = FALSE)
## ---- code=readLines("children/knitr_setup.R"), include=FALSE-------------------------------------
## ---- include=FALSE-------------------------------------------------------------------------------
set.seed(1042020)
## ---- eval = FALSE--------------------------------------------------------------------------------
## library(multinma)
## options(mc.cores = parallel::detectCores())
## ----setup, echo = FALSE--------------------------------------------------------------------------
library(multinma)
nc <- switch(tolower(Sys.getenv("_R_CHECK_LIMIT_CORES_")),
"true" =, "warn" = 2,
parallel::detectCores())
options(mc.cores = nc)
## -------------------------------------------------------------------------------------------------
head(parkinsons)
## -------------------------------------------------------------------------------------------------
arm_net <- set_agd_arm(parkinsons,
study = studyn,
trt = trtn,
y = y,
se = se,
sample_size = n)
arm_net
## ----parkinsons_arm_network_plot------------------------------------------------------------------
plot(arm_net, weight_edges = TRUE, weight_nodes = TRUE)
## -------------------------------------------------------------------------------------------------
summary(normal(scale = 100))
## ---- eval=!params$run_tests----------------------------------------------------------------------
## arm_fit_FE <- nma(arm_net,
## trt_effects = "fixed",
## prior_intercept = normal(scale = 100),
## prior_trt = normal(scale = 10))
## ---- eval=params$run_tests, echo=FALSE-----------------------------------------------------------
arm_fit_FE <- nma(arm_net,
trt_effects = "fixed",
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 10),
iter = 10000)
## -------------------------------------------------------------------------------------------------
arm_fit_FE
## ---- eval=FALSE----------------------------------------------------------------------------------
## # Not run
## print(arm_fit_FE, pars = c("d", "mu"))
## ----arm_FE_pp_plot-------------------------------------------------------------------------------
plot_prior_posterior(arm_fit_FE)
## -------------------------------------------------------------------------------------------------
summary(normal(scale = 100))
summary(half_normal(scale = 5))
## ---- eval=!params$run_tests----------------------------------------------------------------------
## arm_fit_RE <- nma(arm_net,
## seed = 379394727,
## trt_effects = "random",
## prior_intercept = normal(scale = 100),
## prior_trt = normal(scale = 100),
## prior_het = half_normal(scale = 5),
## adapt_delta = 0.99)
## ---- eval=params$run_tests, echo=FALSE-----------------------------------------------------------
arm_fit_RE <- nowarn_on_ci(nma(arm_net,
seed = 379394727,
trt_effects = "random",
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 100),
prior_het = half_normal(scale = 5),
adapt_delta = 0.99,
iter = 10000))
## ----plot_arm_RE_pairs, fig.width = 6-------------------------------------------------------------
pairs(arm_fit_RE, pars = c("mu[4]", "d[3]", "delta[4: 3]", "tau"))
## -------------------------------------------------------------------------------------------------
arm_fit_RE
## ---- eval=FALSE----------------------------------------------------------------------------------
## # Not run
## print(arm_fit_RE, pars = c("d", "mu", "delta"))
## ----arm_RE_pp_plot-------------------------------------------------------------------------------
plot_prior_posterior(arm_fit_RE)
## -------------------------------------------------------------------------------------------------
(arm_dic_FE <- dic(arm_fit_FE))
## -------------------------------------------------------------------------------------------------
(arm_dic_RE <- dic(arm_fit_RE))
## ----arm_FE_resdev_plot---------------------------------------------------------------------------
plot(arm_dic_FE)
## ----arm_RE_resdev_plot---------------------------------------------------------------------------
plot(arm_dic_RE)
## ----arm_releff_FE, fig.height=3------------------------------------------------------------------
(arm_releff_FE <- relative_effects(arm_fit_FE, trt_ref = 1))
plot(arm_releff_FE, ref_line = 0)
## ----arm_releff_RE, fig.height=3------------------------------------------------------------------
(arm_releff_RE <- relative_effects(arm_fit_RE, trt_ref = 1))
plot(arm_releff_RE, ref_line = 0)
## ----arm_pred_FE, fig.height = 2------------------------------------------------------------------
arm_pred_FE <- predict(arm_fit_FE,
baseline = distr(qnorm, mean = -0.73, sd = 21^-0.5),
type = "response",
trt_ref = 1)
arm_pred_FE
plot(arm_pred_FE)
## ----arm_pred_RE, fig.height = 2------------------------------------------------------------------
arm_pred_RE <- predict(arm_fit_RE,
baseline = distr(qnorm, mean = -0.73, sd = 21^-0.5),
type = "response",
trt_ref = 1)
arm_pred_RE
plot(arm_pred_RE)
## ----arm_pred_RE_all, fig.height=8----------------------------------------------------------------
arm_pred_FE_studies <- predict(arm_fit_FE, type = "response")
arm_pred_FE_studies
plot(arm_pred_FE_studies)
## ----parkinsons_arm_ranks, fig.height=2-----------------------------------------------------------
(arm_ranks <- posterior_ranks(arm_fit_FE))
plot(arm_ranks)
## ----parkinson_arm_rankprobs----------------------------------------------------------------------
(arm_rankprobs <- posterior_rank_probs(arm_fit_FE))
plot(arm_rankprobs)
## ----parkinsons_cumrankprobs----------------------------------------------------------------------
(arm_cumrankprobs <- posterior_rank_probs(arm_fit_FE, cumulative = TRUE))
plot(arm_cumrankprobs)
## -------------------------------------------------------------------------------------------------
contr_net <- set_agd_contrast(parkinsons,
study = studyn,
trt = trtn,
y = diff,
se = se_diff,
sample_size = n)
contr_net
## ----parkinsons_contr_network_plot----------------------------------------------------------------
plot(contr_net, weight_edges = TRUE, weight_nodes = TRUE)
## -------------------------------------------------------------------------------------------------
summary(normal(scale = 100))
## ---- eval=!params$run_tests----------------------------------------------------------------------
## contr_fit_FE <- nma(contr_net,
## trt_effects = "fixed",
## prior_trt = normal(scale = 100))
## ---- eval=params$run_tests, echo=FALSE-----------------------------------------------------------
contr_fit_FE <- nma(contr_net,
trt_effects = "fixed",
prior_trt = normal(scale = 100),
iter = 10000)
## -------------------------------------------------------------------------------------------------
contr_fit_FE
## ----contr_FE_pp_plot-----------------------------------------------------------------------------
plot_prior_posterior(contr_fit_FE)
## -------------------------------------------------------------------------------------------------
summary(normal(scale = 100))
summary(half_normal(scale = 5))
## ---- eval=!params$run_tests----------------------------------------------------------------------
## contr_fit_RE <- nma(contr_net,
## seed = 1150676438,
## trt_effects = "random",
## prior_trt = normal(scale = 100),
## prior_het = half_normal(scale = 5),
## adapt_delta = 0.99)
## ---- eval=params$run_tests, echo=FALSE-----------------------------------------------------------
contr_fit_RE <- nowarn_on_ci(nma(contr_net,
seed = 1150676438,
trt_effects = "random",
prior_trt = normal(scale = 100),
prior_het = half_normal(scale = 5),
adapt_delta = 0.99,
iter = 10000))
## ----plot_contr_RE_pairs, fig.width = 6-----------------------------------------------------------
pairs(contr_fit_RE, pars = c("d[3]", "delta[4: 4 vs. 3]", "tau"))
## -------------------------------------------------------------------------------------------------
contr_fit_RE
## ---- eval=FALSE----------------------------------------------------------------------------------
## # Not run
## print(contr_fit_RE, pars = c("d", "delta"))
## ----contr_RE_pp_plot-----------------------------------------------------------------------------
plot_prior_posterior(contr_fit_RE)
## -------------------------------------------------------------------------------------------------
(contr_dic_FE <- dic(contr_fit_FE))
## -------------------------------------------------------------------------------------------------
(contr_dic_RE <- dic(contr_fit_RE))
## ----contr_FE_resdev_plot-------------------------------------------------------------------------
plot(contr_dic_FE)
## ----contr_RE_resdev_plot-------------------------------------------------------------------------
plot(contr_dic_RE)
## ----contr_releff_FE, fig.height=3----------------------------------------------------------------
(contr_releff_FE <- relative_effects(contr_fit_FE, trt_ref = 1))
plot(contr_releff_FE, ref_line = 0)
## ----contr_releff_RE, fig.height=3----------------------------------------------------------------
(contr_releff_RE <- relative_effects(contr_fit_RE, trt_ref = 1))
plot(contr_releff_RE, ref_line = 0)
## ----contr_pred_FE, fig.height = 2----------------------------------------------------------------
contr_pred_FE <- predict(contr_fit_FE,
baseline = distr(qnorm, mean = -0.73, sd = 21^-0.5),
type = "response",
trt_ref = 1)
contr_pred_FE
plot(contr_pred_FE)
## ----contr_pred_RE, fig.height = 2----------------------------------------------------------------
contr_pred_RE <- predict(contr_fit_RE,
baseline = distr(qnorm, mean = -0.73, sd = 21^-0.5),
type = "response",
trt_ref = 1)
contr_pred_RE
plot(contr_pred_RE)
## ---- eval=FALSE----------------------------------------------------------------------------------
## # Not run
## predict(contr_fit_FE, type = "response")
## ----parkinsons_contr_ranks, fig.height=2---------------------------------------------------------
(contr_ranks <- posterior_ranks(contr_fit_FE))
plot(contr_ranks)
## ----parkinsons_contr_rankprobs-------------------------------------------------------------------
(contr_rankprobs <- posterior_rank_probs(contr_fit_FE))
plot(contr_rankprobs)
## ----parkinsons_contr_cumrankprobs----------------------------------------------------------------
(contr_cumrankprobs <- posterior_rank_probs(contr_fit_FE, cumulative = TRUE))
plot(contr_cumrankprobs)
## -------------------------------------------------------------------------------------------------
studies <- parkinsons$studyn
(parkinsons_arm <- parkinsons[studies %in% 1:3, ])
(parkinsons_contr <- parkinsons[studies %in% 4:7, ])
## -------------------------------------------------------------------------------------------------
mix_arm_net <- set_agd_arm(parkinsons_arm,
study = studyn,
trt = trtn,
y = y,
se = se,
sample_size = n)
mix_contr_net <- set_agd_contrast(parkinsons_contr,
study = studyn,
trt = trtn,
y = diff,
se = se_diff,
sample_size = n)
mix_net <- combine_network(mix_arm_net, mix_contr_net)
mix_net
## ----parkinsons_mix_network_plot------------------------------------------------------------------
plot(mix_net, weight_edges = TRUE, weight_nodes = TRUE)
## -------------------------------------------------------------------------------------------------
summary(normal(scale = 100))
## ---- eval=!params$run_tests----------------------------------------------------------------------
## mix_fit_FE <- nma(mix_net,
## trt_effects = "fixed",
## prior_intercept = normal(scale = 100),
## prior_trt = normal(scale = 100))
## ---- eval=params$run_tests, echo=FALSE-----------------------------------------------------------
mix_fit_FE <- nma(mix_net,
trt_effects = "fixed",
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 100),
iter = 10000)
## -------------------------------------------------------------------------------------------------
mix_fit_FE
## ---- eval=FALSE----------------------------------------------------------------------------------
## # Not run
## print(mix_fit_FE, pars = c("d", "mu"))
## ----mix_FE_pp_plot-------------------------------------------------------------------------------
plot_prior_posterior(mix_fit_FE)
## -------------------------------------------------------------------------------------------------
summary(normal(scale = 100))
summary(half_normal(scale = 5))
## ---- eval=!params$run_tests----------------------------------------------------------------------
## mix_fit_RE <- nma(mix_net,
## seed = 437219664,
## trt_effects = "random",
## prior_intercept = normal(scale = 100),
## prior_trt = normal(scale = 100),
## prior_het = half_normal(scale = 5),
## adapt_delta = 0.99)
## ---- eval=params$run_tests, echo=FALSE-----------------------------------------------------------
mix_fit_RE <- nowarn_on_ci(nma(mix_net,
seed = 437219664,
trt_effects = "random",
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 100),
prior_het = half_normal(scale = 5),
adapt_delta = 0.99,
iter=10000))
## ----plot_mix_RE_pairs, fig.width = 6-------------------------------------------------------------
pairs(mix_fit_RE, pars = c("d[3]", "delta[4: 4 vs. 3]", "tau"))
## -------------------------------------------------------------------------------------------------
mix_fit_RE
## ---- eval=FALSE----------------------------------------------------------------------------------
## # Not run
## print(mix_fit_RE, pars = c("d", "mu", "delta"))
## ----mix_RE_pp_plot-------------------------------------------------------------------------------
plot_prior_posterior(mix_fit_RE)
## -------------------------------------------------------------------------------------------------
(mix_dic_FE <- dic(mix_fit_FE))
## -------------------------------------------------------------------------------------------------
(mix_dic_RE <- dic(mix_fit_RE))
## ----mix_FE_resdev_plot---------------------------------------------------------------------------
plot(mix_dic_FE)
## ----mix_RE_resdev_plot---------------------------------------------------------------------------
plot(mix_dic_RE)
## ----mix_releff_FE, fig.height=3------------------------------------------------------------------
(mix_releff_FE <- relative_effects(mix_fit_FE, trt_ref = 1))
plot(mix_releff_FE, ref_line = 0)
## ----mix_releff_RE, fig.height=3------------------------------------------------------------------
(mix_releff_RE <- relative_effects(mix_fit_RE, trt_ref = 1))
plot(mix_releff_RE, ref_line = 0)
## ----mix_pred_FE, fig.height = 2------------------------------------------------------------------
mix_pred_FE <- predict(mix_fit_FE,
baseline = distr(qnorm, mean = -0.73, sd = 21^-0.5),
type = "response",
trt_ref = 1)
mix_pred_FE
plot(mix_pred_FE)
## ----mix_pred_RE, fig.height = 2------------------------------------------------------------------
mix_pred_RE <- predict(mix_fit_RE,
baseline = distr(qnorm, mean = -0.73, sd = 21^-0.5),
type = "response",
trt_ref = 1)
mix_pred_RE
plot(mix_pred_RE)
## ----mix_pred_FE_all, fig.height=8----------------------------------------------------------------
mix_pred_FE_studies <- predict(mix_fit_FE, type = "response")
mix_pred_FE_studies
plot(mix_pred_FE_studies)
## ----parkinsons_mix_ranks, fig.height=2-----------------------------------------------------------
(mix_ranks <- posterior_ranks(mix_fit_FE))
plot(mix_ranks)
## ----parkinsons_mix_rankprobs---------------------------------------------------------------------
(mix_rankprobs <- posterior_rank_probs(mix_fit_FE))
plot(mix_rankprobs)
## ----parkinsons_mix_cumrankprobs------------------------------------------------------------------
(mix_cumrankprobs <- posterior_rank_probs(mix_fit_FE, cumulative = TRUE))
plot(mix_cumrankprobs)
## ----parkinsons_tests, include=FALSE, eval=params$run_tests---------------------------------------
#--- Test against TSD 2 results ---
library(testthat)
library(dplyr)
tol <- 0.05
tol_dic <- 0.1
#--- Arm-level data ---
# FE Relative effects
tsd_FE <- tribble(
~trt, ~mean, ~sd , ~median, ~lower, ~upper,
2 , -1.81, 0.33, -1.81 , -2.46 ,-1.16 ,
3 , -0.47, 0.49, -0.47 , -1.43 ,0.49 ,
4 , -0.52, 0.48, -0.52 , -1.46 ,0.43 ,
5 , -0.82, 0.52, -0.82 , -1.84 ,0.22 ,
) %>%
mutate(trt = ordered(trt, levels = levels(arm_net$treatments))) %>%
arrange(trt)
arm_releff_FE <- as.data.frame(arm_releff_FE)
test_that("FE relative effects", {
expect_equivalent(arm_releff_FE$mean, tsd_FE$mean, tolerance = tol)
expect_equivalent(arm_releff_FE$sd, tsd_FE$sd, tolerance = tol)
expect_equivalent(arm_releff_FE$`50%`, tsd_FE$median, tolerance = tol)
expect_equivalent(arm_releff_FE$`2.5%`, tsd_FE$lower, tolerance = tol)
expect_equivalent(arm_releff_FE$`97.5%`, tsd_FE$upper, tolerance = tol)
})
# RE Relative effects
tsd_RE <- tribble(
~trt, ~mean, ~sd , ~median, ~lower, ~upper,
2 , -1.85, 0.54, -1.84 , -2.91 ,-0.85 ,
3 , -0.50, 0.66, -0.50 , -1.78 ,0.75 ,
4 , -0.53, 0.65, -0.53 , -1.77 ,0.71 ,
5 , -0.83, 0.80, -0.83 , -2.35 ,0.69 ,
) %>%
mutate(trt = ordered(trt, levels = levels(arm_net$treatments))) %>%
arrange(trt)
arm_releff_RE <- as.data.frame(arm_releff_RE)
test_that("RE relative effects", {
expect_equivalent(arm_releff_RE$mean, tsd_RE$mean, tolerance = tol)
expect_equivalent(arm_releff_RE$`50%`, tsd_RE$median, tolerance = tol)
skip_on_ci()
expect_equivalent(arm_releff_RE$sd, tsd_RE$sd, tolerance = tol)
expect_equivalent(arm_releff_RE$`2.5%`, tsd_RE$lower, tolerance = tol)
expect_equivalent(arm_releff_RE$`97.5%`, tsd_RE$upper, tolerance = tol)
})
# Heterogeneity SD
arm_tau <- as.data.frame(summary(arm_fit_RE, pars = "tau"))
test_that("RE heterogeneity SD", {
expect_equivalent(arm_tau$mean, 0.4, tolerance = tol)
expect_equivalent(arm_tau$`50%`, 0.28, tolerance = tol)
skip_on_ci()
expect_equivalent(arm_tau$sd, 0.43, tolerance = tol)
expect_equivalent(arm_tau$`2.5%`, 0.01, tolerance = tol)
expect_equivalent(arm_tau$`97.5%`, 1.55, tolerance = tol)
})
# FE probabilities
tsd_pred_FE <- tribble(
~trt, ~mean, ~sd , ~median, ~lower, ~upper,
1 , -0.73, 0.22, -0.73 , -1.16 ,-0.30 ,
2 , -2.54, 0.40, -2.54 , -3.32 ,-1.76 ,
3 , -1.21, 0.53, -1.20 , -2.25 ,-0.15 ,
4 , -1.25, 0.53, -1.25 , -2.28 ,-0.21 ,
5 , -1.55, 0.57, -1.55 , -2.66 ,-0.43 ,
) %>%
mutate(trt = ordered(trt, levels = levels(arm_net$treatments))) %>%
arrange(trt)
arm_pred_FE <- as.data.frame(arm_pred_FE)
test_that("FE predicted probabilities at 3 years", {
expect_equivalent(arm_pred_FE$mean, tsd_pred_FE$mean, tolerance = tol)
expect_equivalent(arm_pred_FE$sd, tsd_pred_FE$sd, tolerance = tol)
expect_equivalent(arm_pred_FE$`50%`, tsd_pred_FE$median, tolerance = tol)
expect_equivalent(arm_pred_FE$`2.5%`, tsd_pred_FE$lower, tolerance = tol)
expect_equivalent(arm_pred_FE$`97.5%`, tsd_pred_FE$upper, tolerance = tol)
})
# RE probabilities
tsd_pred_RE <- tribble(
~trt, ~mean, ~sd , ~median, ~lower, ~upper,
1 , -0.73, 0.22, -0.73 , -1.16 ,-0.30 ,
2 , -2.58, 0.58, -2.57 , -3.72 ,-1.50 ,
3 , -1.23, 0.70, -1.23 , -2.57 ,0.10 ,
4 , -1.26, 0.69, -1.26 , -2.57 ,0.05 ,
5 , -1.57, 0.83, -1.56 , -3.14 ,0.02 ,
) %>%
mutate(trt = ordered(trt, levels = levels(arm_net$treatments))) %>%
arrange(trt)
arm_pred_RE <- as.data.frame(arm_pred_RE)
test_that("RE predicted probabilities at 3 years", {
expect_equivalent(arm_pred_RE$mean, tsd_pred_RE$mean, tolerance = tol)
expect_equivalent(arm_pred_RE$`50%`, tsd_pred_RE$median, tolerance = tol)
skip_on_ci()
expect_equivalent(arm_pred_RE$sd, tsd_pred_RE$sd, tolerance = tol)
expect_equivalent(arm_pred_RE$`2.5%`, tsd_pred_RE$lower, tolerance = tol)
expect_equivalent(arm_pred_RE$`97.5%`, tsd_pred_RE$upper, tolerance = tol)
})
# FE DIC
test_that("FE DIC", {
expect_equivalent(arm_dic_FE$resdev, 13.3, tolerance = tol_dic)
expect_equivalent(arm_dic_FE$pd, 11.0, tolerance = tol_dic)
expect_equivalent(arm_dic_FE$dic, 24.3, tolerance = tol_dic)
})
# RE DIC
test_that("RE DIC", {
expect_equivalent(arm_dic_RE$resdev, 13.6, tolerance = tol_dic)
expect_equivalent(arm_dic_RE$pd, 12.4, tolerance = tol_dic)
expect_equivalent(arm_dic_RE$dic, 26.0, tolerance = tol_dic)
})
#--- Contrast-level data ---
# Relative effects, heterogeneity, absolute effects are all equal across data scenarios
contr_releff_FE <- as.data.frame(contr_releff_FE)
test_that("FE relative effects", {
expect_equivalent(contr_releff_FE$mean, tsd_FE$mean, tolerance = tol)
expect_equivalent(contr_releff_FE$sd, tsd_FE$sd, tolerance = tol)
expect_equivalent(contr_releff_FE$`50%`, tsd_FE$median, tolerance = tol)
expect_equivalent(contr_releff_FE$`2.5%`, tsd_FE$lower, tolerance = tol)
expect_equivalent(contr_releff_FE$`97.5%`, tsd_FE$upper, tolerance = tol)
})
contr_releff_RE <- as.data.frame(contr_releff_RE)
test_that("RE relative effects", {
expect_equivalent(contr_releff_RE$mean, tsd_RE$mean, tolerance = tol)
expect_equivalent(contr_releff_RE$`50%`, tsd_RE$median, tolerance = tol)
skip_on_ci()
expect_equivalent(contr_releff_RE$sd, tsd_RE$sd, tolerance = tol)
expect_equivalent(contr_releff_RE$`2.5%`, tsd_RE$lower, tolerance = tol)
expect_equivalent(contr_releff_RE$`97.5%`, tsd_RE$upper, tolerance = tol)
})
# Heterogeneity SD
contr_tau <- as.data.frame(summary(contr_fit_RE, pars = "tau"))
test_that("RE heterogeneity SD", {
expect_equivalent(contr_tau$mean, 0.4, tolerance = tol)
expect_equivalent(contr_tau$`50%`, 0.28, tolerance = tol)
skip_on_ci()
expect_equivalent(contr_tau$sd, 0.43, tolerance = tol)
expect_equivalent(contr_tau$`2.5%`, 0.01, tolerance = tol)
expect_equivalent(contr_tau$`97.5%`, 1.55, tolerance = tol)
})
contr_pred_FE <- as.data.frame(contr_pred_FE)
test_that("FE predicted probabilities at 3 years", {
expect_equivalent(contr_pred_FE$mean, tsd_pred_FE$mean, tolerance = tol)
expect_equivalent(contr_pred_FE$sd, tsd_pred_FE$sd, tolerance = tol)
expect_equivalent(contr_pred_FE$`50%`, tsd_pred_FE$median, tolerance = tol)
expect_equivalent(contr_pred_FE$`2.5%`, tsd_pred_FE$lower, tolerance = tol)
expect_equivalent(contr_pred_FE$`97.5%`, tsd_pred_FE$upper, tolerance = tol)
})
contr_pred_RE <- as.data.frame(contr_pred_RE)
test_that("RE predicted probabilities at 3 years", {
expect_equivalent(contr_pred_RE$mean, tsd_pred_RE$mean, tolerance = tol)
expect_equivalent(contr_pred_RE$`50%`, tsd_pred_RE$median, tolerance = tol)
skip_on_ci()
expect_equivalent(contr_pred_RE$sd, tsd_pred_RE$sd, tolerance = tol)
expect_equivalent(contr_pred_RE$`2.5%`, tsd_pred_RE$lower, tolerance = tol)
expect_equivalent(contr_pred_RE$`97.5%`, tsd_pred_RE$upper, tolerance = tol)
})
test_that("Error message when using predict() on only contrast data", {
expect_error(predict(contr_fit_FE),
"No arm-based data \\(IPD or AgD\\) in network")
})
# FE DIC
test_that("FE DIC", {
expect_equivalent(contr_dic_FE$resdev, 6.3, tolerance = tol_dic)
expect_equivalent(contr_dic_FE$pd, 4.0, tolerance = tol_dic)
expect_equivalent(contr_dic_FE$dic, 10.3, tolerance = tol_dic)
})
# RE DIC
test_that("RE DIC", {
expect_equivalent(contr_dic_RE$resdev, 6.6, tolerance = tol_dic)
expect_equivalent(contr_dic_RE$pd, 5.5, tolerance = tol_dic)
expect_equivalent(contr_dic_RE$dic, 12.1, tolerance = tol_dic)
})
# Test contrast-data rows in incorrect order
park_reorder <- sample_frac(parkinsons, size = 1, replace = FALSE)
reorder_net <- set_agd_contrast(park_reorder,
study = studyn,
trt = trtn,
y = diff,
se = se_diff,
sample_size = n)
reorder_fit_FE <- nma(reorder_net,
seed = 1878819627,
trt_effects = "fixed",
prior_trt = normal(scale = 100),
iter = 10000)
reorder_fit_RE <- nowarn_on_ci(nma(reorder_net,
seed = 1147315,
trt_effects = "random",
prior_trt = normal(scale = 100),
prior_het = half_normal(scale = 5),
adapt_delta = 0.99,
iter = 10000))
expect_equivalent_nma_summary <- function(object, expected, ...) {
act <- quasi_label(enquo(object), arg = "object")
exp <- quasi_label(enquo(expected), arg = "expected")
comp <- compare(act$val %>% as.data.frame() %>% select(-c(Bulk_ESS, Tail_ESS, Rhat)),
exp$val %>% as.data.frame() %>% select(-c(Bulk_ESS, Tail_ESS, Rhat)),
...)
expect(comp$equal, sprintf("%s not equal to %s.\n%s",
act$lab, exp$lab, comp$message))
invisible(act$val)
}
test_that("Analysis of reordered contrast data gives same results", {
expect_equivalent_nma_summary(relative_effects(reorder_fit_FE, trt_ref = 1),
contr_releff_FE,
tolerance = tol)
expect_equivalent_nma_summary(predict(reorder_fit_FE,
baseline = distr(qnorm, mean = -0.73, sd = 21^-0.5),
type = "response",
trt_ref = 1),
contr_pred_FE,
tolerance = tol)
expect_equivalent(dic(reorder_fit_FE)$resdev, contr_dic_FE$resdev, tolerance = tol_dic)
expect_equivalent(dic(reorder_fit_FE)$pd, contr_dic_FE$pd, tolerance = tol_dic)
expect_equivalent(dic(reorder_fit_FE)$dic, contr_dic_FE$dic, tolerance = tol_dic)
expect_equivalent(dic(reorder_fit_RE)$resdev, contr_dic_RE$resdev, tolerance = tol_dic)
expect_equivalent(dic(reorder_fit_RE)$pd, contr_dic_RE$pd, tolerance = tol_dic)
expect_equivalent(dic(reorder_fit_RE)$dic, contr_dic_RE$dic, tolerance = tol_dic)
skip_on_ci()
expect_equivalent_nma_summary(relative_effects(reorder_fit_RE, trt_ref = 1),
contr_releff_RE,
tolerance = tol)
expect_equivalent_nma_summary(predict(reorder_fit_RE,
baseline = distr(qnorm, mean = -0.73, sd = 21^-0.5),
type = "response",
trt_ref = 1),
contr_pred_RE,
tolerance = tol)
expect_equivalent_nma_summary(summary(reorder_fit_RE, pars = "tau"),
contr_tau,
tolerance = tol)
})
#--- Mixed data ---
# Relative effects, heterogeneity, absolute effects are all equal across data scenarios
mix_releff_FE <- as.data.frame(mix_releff_FE)
test_that("FE relative effects", {
expect_equivalent(mix_releff_FE$mean, tsd_FE$mean, tolerance = tol)
expect_equivalent(mix_releff_FE$sd, tsd_FE$sd, tolerance = tol)
expect_equivalent(mix_releff_FE$`50%`, tsd_FE$median, tolerance = tol)
expect_equivalent(mix_releff_FE$`2.5%`, tsd_FE$lower, tolerance = tol)
expect_equivalent(mix_releff_FE$`97.5%`, tsd_FE$upper, tolerance = tol)
})
mix_releff_RE <- as.data.frame(mix_releff_RE)
test_that("RE relative effects", {
expect_equivalent(mix_releff_RE$mean, tsd_RE$mean, tolerance = tol)
expect_equivalent(mix_releff_RE$`50%`, tsd_RE$median, tolerance = tol)
skip_on_ci()
expect_equivalent(mix_releff_RE$sd, tsd_RE$sd, tolerance = tol)
expect_equivalent(mix_releff_RE$`2.5%`, tsd_RE$lower, tolerance = tol)
expect_equivalent(mix_releff_RE$`97.5%`, tsd_RE$upper, tolerance = tol)
})
# Heterogeneity SD
mix_tau <- as.data.frame(summary(mix_fit_RE, pars = "tau"))
test_that("RE heterogeneity SD", {
expect_equivalent(mix_tau$mean, 0.4, tolerance = tol)
expect_equivalent(mix_tau$`50%`, 0.28, tolerance = tol)
skip_on_ci()
expect_equivalent(mix_tau$sd, 0.43, tolerance = tol)
expect_equivalent(mix_tau$`2.5%`, 0.01, tolerance = tol)
expect_equivalent(mix_tau$`97.5%`, 1.55, tolerance = tol)
})
mix_pred_FE <- as.data.frame(mix_pred_FE)
test_that("FE predicted probabilities at 3 years", {
expect_equivalent(mix_pred_FE$mean, tsd_pred_FE$mean, tolerance = tol)
expect_equivalent(mix_pred_FE$sd, tsd_pred_FE$sd, tolerance = tol)
expect_equivalent(mix_pred_FE$`50%`, tsd_pred_FE$median, tolerance = tol)
expect_equivalent(mix_pred_FE$`2.5%`, tsd_pred_FE$lower, tolerance = tol)
expect_equivalent(mix_pred_FE$`97.5%`, tsd_pred_FE$upper, tolerance = tol)
})
mix_pred_RE <- as.data.frame(mix_pred_RE)
test_that("RE predicted probabilities at 3 years", {
expect_equivalent(mix_pred_RE$mean, tsd_pred_RE$mean, tolerance = tol)
expect_equivalent(mix_pred_RE$`50%`, tsd_pred_RE$median, tolerance = tol)
skip_on_ci()
expect_equivalent(mix_pred_RE$sd, tsd_pred_RE$sd, tolerance = tol)
expect_equivalent(mix_pred_RE$`2.5%`, tsd_pred_RE$lower, tolerance = tol)
expect_equivalent(mix_pred_RE$`97.5%`, tsd_pred_RE$upper, tolerance = tol)
})
# FE DIC
test_that("FE DIC", {
expect_equivalent(mix_dic_FE$resdev, 9.3, tolerance = tol_dic)
expect_equivalent(mix_dic_FE$pd, 7.0, tolerance = tol_dic)
expect_equivalent(mix_dic_FE$dic, 16.3, tolerance = tol_dic)
})
# RE DIC
test_that("RE DIC", {
expect_equivalent(mix_dic_RE$resdev, 9.6, tolerance = tol_dic)
expect_equivalent(mix_dic_RE$pd, 8.5, tolerance = tol_dic)
expect_equivalent(mix_dic_RE$dic, 18.1, tolerance = tol_dic)
})
# --- Check UME models ---
arm_fit_FE_UME <- nma(arm_net,
trt_effects = "fixed",
consistency = "ume",
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 10),
iter = 10000)
# NOTE: RE UME models are not really tractable - lots of divergences - not
# enough data to estimate tau
mix_fit_FE_UME <- nma(mix_net,
trt_effects = "fixed",
consistency = "ume",
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 100),
iter = 10000)
test_that("Arm/Mixed UME results are the same", {
expect_equivalent_nma_summary(summary(arm_fit_FE_UME, pars = "d"),
summary(mix_fit_FE_UME, pars = "d"),
tolerance = tol)
})
# NOTE: Contrast (and reordered contrast) results are different, since the
# choice of independent contrasts is based on the "observed" baseline arms in
# the data rather than the treatment ordering
contr_fit_FE_UME <- nma(contr_net,
trt_effects = "fixed",
consistency = "ume",
prior_trt = normal(scale = 100),
iter = 10000)
reorder_fit_FE_UME <- nma(reorder_net,
seed = 1878819627,
trt_effects = "fixed",
consistency = "ume",
prior_trt = normal(scale = 100),
iter = 10000)
test_that("Contr/Reordered UME results are the same", {
expect_equivalent_nma_summary(summary(contr_fit_FE_UME, pars = "d"),
summary(reorder_fit_FE_UME, pars = "d"),
tolerance = tol)
})
# --- Test regression models with contrast data ---
park_dummy <- dplyr::mutate(parkinsons, x1 = rnorm(dplyr::n(), 0, 1))
arm_net_reg <- set_agd_arm(park_dummy,
study = studyn,
trt = trtn,
y = y,
se = se,
sample_size = n)
arm_fit_FE_reg <- nma(arm_net_reg,
trt_effects = "fixed",
regression = ~x1:.trt,
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 10),
prior_reg = normal(scale = 1),
iter = 10000)
contr_net_reg <- set_agd_contrast(park_dummy,
study = studyn,
trt = trtn,
y = diff,
se = se_diff,
sample_size = n)
contr_fit_FE_reg <- nma(contr_net_reg,
trt_effects = "fixed",
regression = ~x1:.trt,
prior_trt = normal(scale = 100),
prior_reg = normal(scale = 1),
iter = 10000)
mix_net_reg <- combine_network(set_agd_arm(park_dummy[studies %in% 1:3, ],
study = studyn,
trt = trtn,
y = y,
se = se,
sample_size = n),
set_agd_contrast(park_dummy[studies %in% 4:7, ],
study = studyn,
trt = trtn,
y = diff,
se = se_diff,
sample_size = n))
mix_fit_FE_reg <- nma(mix_net_reg,
trt_effects = "fixed",
regression = ~x1:.trt,
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 100),
prior_reg = normal(scale = 1),
iter = 10000)
reorder_net_reg <- set_agd_contrast(sample_frac(park_dummy, size = 1, replace = FALSE),
study = studyn,
trt = trtn,
y = diff,
se = se_diff,
sample_size = n)
reorder_fit_FE_reg <- nma(reorder_net_reg,
seed = 1878819627,
trt_effects = "fixed",
regression = ~x1:.trt,
prior_trt = normal(scale = 100),
prior_reg = normal(scale = 1),
iter = 10000)
test_that("Regression models work with contrast data", {
expect_equivalent_nma_summary(summary(arm_fit_FE_reg, pars = c("d", "beta")),
summary(contr_fit_FE_reg, pars = c("d", "beta")),
tolerance = tol)
expect_equivalent_nma_summary(summary(arm_fit_FE_reg, pars = c("d", "beta")),
summary(mix_fit_FE_reg, pars = c("d", "beta")),
tolerance = tol)
expect_equivalent_nma_summary(summary(contr_fit_FE_reg, pars = c("d", "beta")),
summary(reorder_fit_FE_reg, pars = c("d", "beta")),
tolerance = tol)
})
test_that("Error message when using predict() on only contrast data", {
expect_error(predict(contr_fit_FE_reg),
"No arm-based data \\(IPD or AgD\\) in network")
})
# ML-NMR regression models too
park_dummy_mlnmr <- dplyr::mutate(parkinsons,
x1_mean = rnorm(dplyr::n(), 0, 1),
x1_sd = runif(dplyr::n(), 0.1, 1))
arm_net_mlnmr <- set_agd_arm(park_dummy_mlnmr,
study = studyn,
trt = trtn,
y = y,
se = se,
sample_size = n) %>%
add_integration(x1 = distr(qnorm, x1_mean, x1_sd), n_int = 10)
arm_fit_FE_mlnmr <- nma(arm_net_mlnmr,
trt_effects = "fixed",
regression = ~x1:.trt,
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 10),
prior_reg = normal(scale = 1),
iter = 20000, save_warmup = FALSE)
contr_net_mlnmr <- set_agd_contrast(park_dummy_mlnmr,
study = studyn,
trt = trtn,
y = diff,
se = se_diff,
sample_size = n) %>%
add_integration(x1 = distr(qnorm, x1_mean, x1_sd), n_int = 10)
contr_fit_FE_mlnmr <- nma(contr_net_mlnmr,
trt_effects = "fixed",
regression = ~x1:.trt,
prior_trt = normal(scale = 100),
prior_reg = normal(scale = 1),
iter = 20000, save_warmup = FALSE)
mix_net_mlnmr <- combine_network(set_agd_arm(park_dummy_mlnmr[studies %in% 1:3, ],
study = studyn,
trt = trtn,
y = y,
se = se,
sample_size = n),
set_agd_contrast(park_dummy_mlnmr[studies %in% 4:7, ],
study = studyn,
trt = trtn,
y = diff,
se = se_diff,
sample_size = n)) %>%
add_integration(x1 = distr(qnorm, x1_mean, x1_sd), n_int = 10)
mix_fit_FE_mlnmr <- nma(mix_net_mlnmr,
trt_effects = "fixed",
regression = ~x1:.trt,
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 100),
prior_reg = normal(scale = 1),
iter = 20000, save_warmup = FALSE)
reorder_net_mlnmr <- set_agd_contrast(sample_frac(park_dummy_mlnmr, size = 1, replace = FALSE),
study = studyn,
trt = trtn,
y = diff,
se = se_diff,
sample_size = n) %>%
add_integration(x1 = distr(qnorm, x1_mean, x1_sd), n_int = 10)
reorder_fit_FE_mlnmr <- nma(reorder_net_mlnmr,
seed = 1878819627,
trt_effects = "fixed",
regression = ~x1:.trt,
prior_trt = normal(scale = 100),
prior_reg = normal(scale = 1),
iter = 20000, save_warmup = FALSE)
test_that("ML-NMR models work with contrast data", {
expect_equivalent_nma_summary(summary(arm_fit_FE_mlnmr, pars = c("d", "beta")),
summary(contr_fit_FE_mlnmr, pars = c("d", "beta")),
tolerance = tol)
expect_equivalent_nma_summary(summary(arm_fit_FE_mlnmr, pars = c("d", "beta")),
summary(mix_fit_FE_mlnmr, pars = c("d", "beta")),
tolerance = tol)
expect_equivalent_nma_summary(summary(contr_fit_FE_mlnmr, pars = c("d", "beta")),
summary(reorder_fit_FE_mlnmr, pars = c("d", "beta")),
tolerance = tol)
})
test_that("Error message when using predict() on only contrast data", {
expect_error(predict(contr_fit_FE_mlnmr),
"No arm-based data \\(IPD or AgD\\) in network")
})
test_that("Robust to custom options(contrasts) settings", {
arm_fit_FE_SAS <- withr::with_options(list(contrasts = c(ordered = "contr.SAS",
unordered = "contr.SAS")),
nma(arm_net,
trt_effects = "fixed",
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 10),
iter = 10000))
expect_equivalent_nma_summary(summary(arm_fit_FE_SAS), summary(arm_fit_FE),
tolerance = tol)
expect_equivalent_nma_summary(relative_effects(arm_fit_FE_SAS), relative_effects(arm_fit_FE),
tolerance = tol)
contr_fit_FE_SAS <- withr::with_options(list(contrasts = c(ordered = "contr.SAS",
unordered = "contr.SAS")),
nma(contr_net,
trt_effects = "fixed",
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 10),
iter = 10000))
expect_equivalent_nma_summary(summary(contr_fit_FE_SAS), summary(contr_fit_FE),
tolerance = tol)
expect_equivalent_nma_summary(relative_effects(contr_fit_FE_SAS), relative_effects(contr_fit_FE),
tolerance = tol)
mix_fit_FE_SAS <- withr::with_options(list(contrasts = c(ordered = "contr.SAS",
unordered = "contr.SAS")),
nma(mix_net,
trt_effects = "fixed",
prior_intercept = normal(scale = 100),
prior_trt = normal(scale = 10),
iter = 10000))
expect_equivalent_nma_summary(summary(mix_fit_FE_SAS), summary(mix_fit_FE),
tolerance = tol)
expect_equivalent_nma_summary(relative_effects(mix_fit_FE_SAS), relative_effects(mix_fit_FE),
tolerance = tol)
})
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