how to calculate MAD for a data frame in R with 702 columns and 27842 rows. i used for-loop, there was no change between the log2+1 data and MAD value . is there any other command?
I think that Devon's answer to your previous question on standard deviation applies to this one as well.
Could you post the code you used, ideally with a minimum reproducible example. I am afraid this is not, as written now, a bioinformatics question.