On 05/02/2021 10:44 a.m., Mahmood Naderan-Tahan wrote:
Hi,
1- How can I assign different colors to different observations in the PCA
chart? Assume, I have 10 observations and I want to use black color for the
first 5 and read for the next 5 observations.
Currently, I use
res.pca = PCA(mydata[,1:37], scale.unit=TRUE, graph=T)
plot(res.pca,axes=c(1,2))
2- How can I change the plot area size and font sizes? With these commands
dev.new(width=20, height=4)
plot(res.pca,axes=c(1,2))
The final plot is not what I expected. Please see the picture at
https://imgur.com/UINTnv7
No need to post twice. You probably didn't get an answer the first time
because it was just an hour ago, and you didn't include "mydata" (or a
suitable subset) in your posting. For the best chance at getting a
helpful answer, post code that others can run.
Duncan Murdoch
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