**i have 2 samples A & B proteome data analyzed using progenesis software. i have max fold change reported to be infinity. How will i convert these fold change to log2fc values for heat map generation?
From a mathematical point, log(Inf) = Inf.
biologically these are significant proteins which are unique to one particular sample
If you don't want/can't use Inf, you need to come up with a replacement value. For visualization purposes, I guess any value that's higher than the max of the rest of the data could do. What to do really depends on what you want to achieve.
You posted this as a Forum. I have changed it to a Question.