performing PCA by R

Question

[heba.m.elseedy]

Hello Everyone ,i want to create PCA fifure for RNA seq , i don't know how i can perform it by R and i don't which type of reads i used the normalized value or the row data

Thanks

Answer 1

[GenoMax]

@Kevin has a nice package available: https://github.com/kevinblighe/PCAtools

Thread with info: A: PCA plot from read count matrix from RNA-Seq

Answer 2

[Jean-Karim Heriche]

?prcomp
Also this tutorial.

Answer 3

[brunobsouzaa]

DESeq2 has a plotPCA function, take a look here