[BioC] plotting 3d image of pca analysis

[Frederico Arnoldi]

Rohit,

> but this package is huge ... and m new to R so if i can get some straight commands it
> will be really helpful ...

I never used "ord", but using the traditional "prcomp" and scatterplot3d, you can do it like this:

library(scatterplot3d)
data <- read.table("your_data_file"......)
pca <- prcomp(data) # if you are loading a microarray, matrix you should use prcomp(t(data))
scatterplot3d(pca$x[,1], pca$x[,2], pca$x[,3], main = "PCA 3D plot")

Good luck,
Frederico Arnoldi
 		 	   		  
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