First post here. Hello everyone!
This is the first time I have to use bioinformatics, so I apologize but this is going to be a very basic question. I would like to create a Venn diagram to see which genes are commonly expressed between two or three treatments. I have the excel sheets with p values and gene ids of differentially expressed genes between treatments. I have one excel file for each comparison.
I don't seem to get how it works because I upload the file with gene IDs in BioVenn (as an example) but doesn't give me any response (might be a technical issue). More importantly I'm not understanding how I can create a Venn diagram uploading a single file where the comparison of two conditions was done already. I thought I should use individual gene counts, but I don't know how to start with it.
Sorry for the dumb question but I am utterly confused.