Path: news.mathworks.com!not-for-mail
From: "Steven Lord" <slord@mathworks.com>
Newsgroups: comp.soft-sys.matlab
Subject: Re: Fitting in Matlab
Date: Fri, 27 Mar 2009 09:31:13 -0400
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"Alexander" <alexander.erlich@gmail.com> wrote in message 
news:gqibp5$5dm$1@fred.mathworks.com...
> Hello,
>
> I use a student version of Matlab R2007a, and I have a question about 
> fitting. The student version comes without the Curve Fitting Toolbox. 
> However, there is a way of intuitive GUI fitting, but it's very limited: 
> In my version, if I go to Tools --> Basic fitting (in any figure window), 
> I can for example choose linear fitting. Unfortunately, only one dataset 
> can be fitted simultaneously, and there is no way to exclude bad points 
> from the fit.
>
> I have to do a lot of fitting regularly (mostly linear regression), and in 
> most problems I require to fit several datasets in one figure, as well as 
> to be able to exclude points in a dataset from fitting. Do you know a good 
> way to do that (apart from coding every fit by hand)?
>
> Matlab is really wonderful for manipulating data (recorded in physical 
> experiments), it's also wonderful for plotting, so I guess there must be 
> some way do some good fitting with it. I'd really hate to have to change 
> to other tools like Origin oder Igor Pro, which by the way do not even 
> have native Linux versions.

While the Student Version does not include Curve Fitting Toolbox by default, 
it is available as an add-on product.

http://www.mathworks.com/academia/student_version/companion.html

If you're interested in purchasing this toolbox, go to the Store website at 
the top of the page I linked above or contact Customer Service.

-- 
Steve Lord
slord@mathworks.com