Thread Subject: Graphical Regression

Hi All,

I am not sure if I have seen this application from Matlab application or other programs.
What I would like to do is given X, Y data and its scatter plot. I would like to be able to simply drag a line passing through the data. The program will be able to provide a functional form and the coefficients of the selected line.

I do not recall if I saw this type of application through Matlab or other programs. I would really appreciate any hints.

Thanks,

"Pete sherer" <tsh@abg.com> wrote in message <h8om9n$2nj$1@fred.mathworks.com>...
> Hi All,
>
> I am not sure if I have seen this application from Matlab application or other programs.
> What I would like to do is given X, Y data and its scatter plot. I would like to be able to simply drag a line passing through the data. The program will be able to provide a functional form and the coefficients of the selected line.
>
> I do not recall if I saw this type of application through Matlab or other programs. I would really appreciate any hints.
>
> Thanks,

I am doing something not a million mile from your description. I don't have the curve fitting toolbox (yet!) but have found that the ezyfit program available in the file exchange used in conjunction with the data brushing facility available in the recent versions of Matlab enabled me to generate an application that suits my current requirement.

Regards

Dave Robinson