On Tue, Jul 24, 2012 at 11:41 AM, Chris Maness <chris at chrismaness.com>wrote:
> I working on fitting some data two a 1st order equation of the form:
>
> [image: Inline image 1] (L+.4*d=n*lambda/4)
>
> I know L,d, and n and I am trying to find value for lambda that will best
> fit my datum.
>
> I am playing with a really simple fit first, but I am failing. Can anyone
> help me point out what I am missing?
>
> (%i156) M;
> [ 1 1 ]
> [ ]
> (%o156) [ 2 2 ]
> [ ]
> [ 3 3 ]
> (%i157) lsquares_estimates(M,x,A*x,A);
>
> length: argument cannot be a symbol; found x
> #0: lsquares_mse(data%=data,variables=x,equation=x*A)(lsquares.mac line
> 257)
> #1:
> lsquares_estimates(data=matrix([1,1],[2,2],[3,3]),variables=x,equation=x*A,parameters=A,optional_args=[])(lsquares.mac
> line 243)
> -- an error. To debug this try: debugmode(true);
> (%i158)
>
> A is supposed to equal one because it is s simple y=x curve.
>
> Thanks,
> Chris Maness
>
Never, mind. I was able to find a simpler example and I now understand.
Thanks,
Chris Maness
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