How to approximate simple data vectors?

Hello,

lets say I have few simple data, in vectors and I want to approximate them with curve of order n. I searched here and found out that something called SLM (Shape language modeling) should be able to do it, but the problem is I cannot figure it our how does it work. There is only one example in the description and it doesnt work for me. I would be gratefull for any insights.

Answer 1

[Cris LaPierre]

These look like straight lines to me. I'd use polyfit.

If you have the Curve Fitting Toolbox, you could also use the fit function with the type set to 'poly1'.

[Jan Mares]

Thanks, I forgot about polyfit.. :)