I desperately need help here. I have microarray and RNA-seq datasets on which I performed, individually, DEGs analysis using GEO2R. Now I need to find the common DEGs between all these datasets using R.
I am very lost and confused about the next steps, as the internet is overwhelmingly full of tutorials and most of them are for comparing only two datasets (not multiple)
I am a beginner and I really need help in this as my time is running out
Any guidance is highly appreciated