Hello, this is my situation: I've got some data from an experiment stored in matlab. So I plot the graph and get a x^2 curve. I plot the loglog graph and see a near-"perfect" line. Now I want to create the best approximation to it (in a least squares sense). I don't want to do that manually as it's a tedious process. So I tried polyfit, but when I compare the line generated by polyfit to the line from the experiments + after applying loglogging it doesn't match at all. I take it I made something wrong, but I don't get what.