search for: genotp

i have 2 groups i want to compare: group A and group B each group contains let's say 20 patients i want to perform a Fisher Exact test on genotype distribution so, see if there is a sign diff in genotpe frequency/distribution (#AA, #AB, #BB) between group A and B not for 1, but for 1000 different genes my question: how should i build my table so i can do: test <- read.table("table1.txt") fisher.test(test) i know a lot is still missing in the syntax, but i do not know what. any hel...