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### library(metafor); library(testthat); Sys.setenv(NOT_CRAN="true")
### see also: https://www.metafor-project.org/doku.php/plots:baujat_plot
source("settings.r")
context("Checking plots example: Baujat plot")
test_that("plot can be drawn.", {
expect_equivalent(TRUE, TRUE) # avoid 'Empty test' message
skip_on_cran()
### create Baujat plot
png("images/test_plots_baujat_plot_test.png", res=200, width=1800, height=1800, type="cairo")
### adjust margins so the space is better used
par(mar=c(5,4,2,2))
### load data from Pignon et al. (2000)
dat <- dat.pignon2000
### compute estimated log hazard ratios and sampling variances
dat$yi <- with(dat, OmE/V)
dat$vi <- with(dat, 1/V)
### meta-analysis based on all 65 trials
res <- rma(yi, vi, data=dat, method="EE", slab=id)
baujat(res, xlim=c(0,20), ylim=c(0,0.2))
dev.off()
expect_true(.vistest("images/test_plots_baujat_plot_test.png", "images/test_plots_baujat_plot.png"))
})
rm(list=ls())
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