PCA to Table ?

[Talha Malik]

How can i save my pca components built in R using bio3d library in table ? i want to export my pca result to xmgrace ?

[Xinqiu Yao]

Please describe your questions in more detail: What exactly do you mean 'pca components'? Also, this is not a bug...

[Talha Malik]

i have ploted a pca in R, now i want to export that to txt or .dat format so that i can open it in xmgrace.. when i write that plot to table its give me an error. if u could help me on that.

[Barry Grant]

If you want to export or write out the scores along the PCs for example you can use some code like the following:

## Assuming your PCA result is stored in an object called 'pc.xray' and you want the first 3 only
write.csv(pc.xray$z[,1:3], file="MyOutputFile.csv", quote=FALSE)

There are lots of other output functions for writing to excel format etc. Use google to find there standard R functions.

Side-note: I am not sure why you would want to use xmgrace when you have the power of R graphics at your fingertips.