Nothing
# fixes problems with change in all.equal() behavior in R 4.1.x
expect_eql <- function(...) expect_equal(..., check.environment = FALSE)
expect_equiv <- function(...) expect_equivalent(..., check.environment = FALSE)
context("Discrete variables")
set.seed(5)
test_that("bicop_dist works", {
cop <- bicop_dist("gum", 90, 4, c("d", "c"))
expect_identical(cop$var_types, c("d", "c"))
u <- rbicop(10, "gum", 90, 4)
u <- cbind(u, u)
u[, 1] <- ceiling(u[, 1] * 3) / 3
u[, 3] <- floor(u[, 3] * 3) / 3
# only check for errors
dbicop(u, cop)
pbicop(u, cop)
hbicop(u, 1, cop)
hbicop(u, 2, cop, TRUE)
rbicop(10, cop)
dbicop(u, "gum", 90, 4, c("d", "c"))
pbicop(u, "gum", 90, 4, c("d", "c"))
hbicop(u, 2, "gum", 90, 4, FALSE, c("d", "c"))
hbicop(u, 1, "gum", 90, 4, TRUE, c("d", "c"))
})
test_that("bicop works", {
u <- rbicop(1000, "gum", 90, 4)
u <- cbind(u, u)
u[, 1] <- ceiling(u[, 1] * 3) / 3
u[, 3] <- floor(u[, 3] * 3) / 3
cop <- bicop(u,
family = "gumbel",
var_types = c("d", "c"),
presel = FALSE,
keep_data = TRUE)
expect_eql(cop$family, "gumbel")
expect_eql(cop$rotation, 90)
expect_eql(cop$parameters[1], 4, tol = 0.5)
expect_identical(cop$var_types, c("d", "c"))
})
# -----------------------------------------------------------------
set.seed(0)
bicop <- bicop_dist("bb1", 90, c(3, 2))
pcs <- list(list(bicop, bicop), list(bicop))
mat <- matrix(c(1, 2, 3, 1, 2, 0, 1, 0, 0), 3, 3)
var_types <- c("d", "d", "c")
test_that("vinecop_dist works", {
cop <- vinecop_dist(pcs, mat, var_types)
expect_eql(cop$var_types, var_types)
u <- rvinecop(20, cop)
u <- cbind(u, u)
u[, 1] <- ceiling(u[, 1] * 3) / 3
u[, 3] <- floor(u[, 3] * 3) / 3
u[, 2] <- ceiling(u[, 2] * 10) / 10
u[, 3] <- floor(u[, 4] * 10) / 10
# only check for errors
dvinecop(u, cop)
pvinecop(u, cop)
})
test_that("vinecop works", {
u <- replicate(3, runif(20))
u <- cbind(u, u)
u[, 1] <- ceiling(u[, 1] * 3) / 3
u[, 3] <- floor(u[, 3] * 3) / 3
u[, 2] <- ceiling(u[, 2] * 10) / 10
u[, 3] <- floor(u[, 4] * 10) / 10
cop <- vinecop(u, var_types = var_types, family = "tll")
summary(cop)
expect_identical(cop$var_types, var_types)
})
# -----------------------------------------------------------------
test_that("vine works", {
n <- 20
x1 <- rnorm(n)
x2 <- ordered(sample(5, n, TRUE), 1:5)
x3 <- x1 + as.numeric(x2) + rnorm(n, sd = 0.5)
x <- data.frame(x1, x2, x3)
fit <- vine(x)
sim <- rvine(n * 10, fit)
expect_true(is.data.frame(sim))
expect_eql(sort(unique(sim[, 2])), ordered(1:5))
summary(fit)
expect_identical(fit$copula$var_types, c("c", "d", "c"))
# only check for errors
dvine(x, fit)
pvine(x, fit)
rvine(10, fit)
})
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