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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,