Hi all, I'm having problems with something I'd like to do. Basically I have a 3D scatter plot and would like to add a line of best fit to it, I've googled this but most of the answers I get are incomprehensible to me (I'm a chemistry PhD student and my maths isn't amazing). Does anyone know a program or a method for doing this? The easier the better! (I have access to GUNplot and MATLAB if that helps but am not that familiar with either) Many thanks in advance.