[BioC] plotMDS EdgeR/limma

[Kaat De Cremer]

Dear list,


I have a questing regarding the 'plotMDS' function in EdgeR (and limma).
In my case the plot generated (see attachment) is hard to read, since some of the labels are at the exact same place in the plot.

I tried to use symbols using the plot argument 'pch' but this doesn't seem to work for this function.

Does anyone have a solution how to use symbols in this plot?
Or any other suggestion how to make it visually easier to interpret?


Thank you very much!


Kaat