Non-linear Multi-Variable Fitting

So I have lots of data (about 1000 points) and I want to fit this data in terms of six varbales: F(x,y,z,u,v,w). Is this possible in MATLAB? With my knowledge and experience with those variables, I expect that sinoiousial fitting (Sines, Cosines, etc) will yield the best results, but I don't know if this is possible. Any hints or tips on how to approach this in MATLAB (or outside) are appreciated.

[Ali Almakhmari]

here is the data. x, y, z, u, v, w and F are all in radians if that helps

Answer 1

[Alex Sha]

If possible, post out your data file please

[Ali Almakhmari]

here is the data. x, y, z, u, v, w and F are all in radians if that helps