Freemat

I am an undergrad so I am still really getting used to using Matlab for data analysis, though I am relatively comfortable with it. And by comfortable, I mean within the limits of basic analysis. I am not doing anything too fancy with it.

I just stated playing around with Freemat, which seems easy enough to use for basic things, but I was hoping someone would be able to answer a plotting question. Its a basic question really - I'm ok with inputting data arrays and plotting them. What I'd like to be able to do is linearize my data, which I can use the loglog function, but I need it to output a function and parameters (l.e. uncertainties) for me. Is there an easy answer to this?