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### library(metafor); library(testthat); Sys.setenv(NOT_CRAN="true")
### see also: https://www.metafor-project.org/doku.php/plots:plot_of_influence_diagnostics
source("settings.r")
context("Checking plots example: plot of influence diagnostics")
test_that("plot can be drawn.", {
expect_equivalent(TRUE, TRUE) # avoid 'Empty test' message
skip_on_cran()
### fit random-effects model with r-to-z transformed correlations
res <- rma(ri=ri, ni=ni, measure="ZCOR", data=dat.mcdaniel1994)
### calculate influence diagnostics
inf <- influence(res)
### plot the influence diagnostics
png("images/test_plots_plot_of_influence_diagnostics_1_test.png", res=200, width=1800, height=3600, type="cairo")
plot(inf, layout=c(8,1))
dev.off()
expect_true(.vistest("images/test_plots_plot_of_influence_diagnostics_1_test.png", "images/test_plots_plot_of_influence_diagnostics_1.png"))
png("images/test_plots_plot_of_influence_diagnostics_2_test.png", res=200, width=1800, height=1800, type="cairo")
plot(inf, plotinf=FALSE, plotdfbs=TRUE)
dev.off()
expect_true(.vistest("images/test_plots_plot_of_influence_diagnostics_2_test.png", "images/test_plots_plot_of_influence_diagnostics_2.png"))
out <- capture.output(print(inf)) # so that print.infl.rma.uni() is run (at least once)
})
rm(list=ls())
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