On 22/07/2020 1:25 p.m., Helmut Schütz wrote:
Hi Serguei,
Serguei Sokol wrote on 2020-07-22 15:51:
Hmm... I see 2 possibilities for still getting an error while the
concerned part of code is not supposed to be run:
- either you are running not updated version of your package;
I _can_ built the package and it runs as intended. Only the CHECK throws
the error.
- or the error comes from some other place of the code.
Closing the device is required only _once_ in the entire package.
In my NAMESPACE I have (and had in all previous versions):
importFrom(grDevices, png, graphics.off, dev.list, dev.off)
Sorry but without a minimal reproducible example I cannot help more.
The problem is that I cannot reproduce it as well. Only CHECK laments
about dev.off() which I changed to graphics.off() in the meantime.
library(grDevices)
foo <- TRUE # shall we plot?
png.path <- "~/" # user's home folder
png.path <- normalizePath(png.path)
if (foo) {
png(paste0(png.path, "test.png"), width = 480, height = 480,
pointsize = 12)
}
plot(x = 0:1, y = 0:1, type = "l", xlab = "x", ylab = "y")
if (foo) {
graphics.off()
}
You don't test whether the call to png() succeeded. During a check, it
probably wouldn't, because you aren't allowed to write to "~/". Your
package should be writing to tempdir(), or a location entered by the user.
Duncan Murdoch
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