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Question: PCA analysis in R for 780 genes in 20 samples.
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gravatar for suranandbabu85
6 months ago by
suranandbabu850 wrote:

Halo friends,

 

 

I have to do PCA analysis. I have 17 different samples (columns) and 730 genes for each samples (rows). I want to find how different they are from one another depending on the expression of all these genes.

I would like to know the code in R and which package should i use for this.

How can i compare more than two samples using only first two Principle Components??

 

Kindly let me know.

 

thank you,

 

 

ADD COMMENTlink modified 6 months ago by Steve Lianoglou12k • written 6 months ago by suranandbabu850
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gravatar for Steve Lianoglou
6 months ago by
Denali
Steve Lianoglou12k wrote:

It looks like you might benefit from some general introductory materials to PCA, and for that you might try reading through some of the materials made available on the factominer website:

http://factominer.free.fr/

 

ADD COMMENTlink written 6 months ago by Steve Lianoglou12k
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