[R] Specifying plot file name in the rscript

[Ben Tupper]

Hi,

When you call plot() it will draw to the default device - in your case
the pdf() device. When the default device results in a file, R selects
a filename for you unless you tell it otherwise.  You can specify the
filename by explicitly calling pdf() first.

pdf("var_plot.pdf")
plot(res.pca, choix="var", axes=c(1,2))
dev.off()

pdf("ind_plot.pdf")
plot(res.pca, choix="ind", axes=c(1,2))
dev.off()

See ?device for a listing of available devices.

Ben


On Tue, Mar 9, 2021 at 7:11 AM Mahmood Naderan-Tahan
<mahmood.naderan using ugent.be> wrote:
>
> Hi
>
> I use the following R script to plot two graphs.
>
>
> library(FactoMineR)
> mydata <- read.csv('test.csv', header=T,row.names=1)
> res.pca = PCA(mydata, quali.sup=5, graph=F)
> plot(res.pca, choix="var", axes=c(1,2))
> dev.new()
> plot(res.pca, choix="ind", axes=c(1,2))
>
> After running "Rscript my.r", I see two pdf files Rplots.pdf and Rplots1.pdf.
> I would like to specify file names in the script as well. How can I do that?
>
>
> Regards,
> Mahmood
>
>         [[alternative HTML version deleted]]
>
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-- 
Ben Tupper
Bigelow Laboratory for Ocean Science
East Boothbay, Maine
http://www.bigelow.org/
https://eco.bigelow.org