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
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