I have searched the other questions about log normalization and all assume a level of understanding that I don't have.
I have some ecological data and I am told that it needs to be log transformed. My dependent variables are relative densities of compounds found in the plants, and the independent variables have to do with location (A or B), distance from a trail (on a trail or not on a trail), and a number of covariants like pH and soil moisture. I have done ANCOVA's with the two independent variables adding the different covariants. However, I apparently need to log normalize the data
As I understand it, I need to take either the base ten or base e log of my variables. I can do that fine for the relative densities as they are numerical, but what do I do when my independent variables are categorical like location A v. B? Also, what do I do with the covariants, all of which are numerical?