I am using DESeq2 and after the rld transformation I plotted the PCA and found an interesting result. However, I don't know how to extract the PC data. I want to know what the Principal Components actually are (I believe it's a weighted gene list so I want to know the weights?). I would also like to retrieve the data on PC3, PC4, etc. and understand what are in the those principal components but also how much variance are explained by those principal components.
Please let me know if this is possible within DESeq2 or if I should use another package.