Re: [R] Plot Principal component analysis

From: David Winsemius <>
Date: Thu, 28 Feb 2008 15:21:43 +0000 (UTC)

SNN <> wrote in

> Thanks for your help,
> Can R plot the data in 3 dimention, with different colors for each
> group ?
> for exmple I would like to have the plot with respect to PC1, PC2
> and PC3.

See if these answer your desires:

<> <>

David Winsemius

> SNN wrote:
>> Hi,
>> I have matrix of 300,000*115 (snps*individual). I ran the PCA on
>> the covariance matrix which has a dimention oof 115*115. I have the
>> first 100 individuals from group A and the rest of 15 individuals
>> from group B. I need to plot the data in two and 3 dimentions with
>> respect to PC1 and PC2 and (in 3D with respect to PC1, PC2 and
>> PC3). I do not know how to have the plot ploting the first 100
>> points corresponding to group A in red (for example) and the rest
>> of the 15 points in Blue? i.e I want the each group in a diffrent
>> color in the same plot. I appreciate if someone can help.
>> Thanks,
______________________________________________ mailing list PLEASE do read the posting guide and provide commented, minimal, self-contained, reproducible code.
Received on Thu 28 Feb 2008 - 15:31:02 GMT

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.2.0, at Thu 28 Feb 2008 - 16:30:17 GMT.

Mailing list information is available at Please read the posting guide before posting to the list.

list of date sections of archive