Possible bug?

[mrodrig]

Hello,

I am trying to make a data fitting using the leasqr function. In the
attachment you can find the data and the function that I am trying to adjust
and the adjustment parameters.

When plotting x vs y and the F function with the par parameters, initially
it seems reasonable.

When I make the adjustment I get the following result

error: weighted residuals are not real
error: called from
     __lm_svd__ at line 467 column 11
 
I searched and there are other users that something similar has happened to
them

Somebody could help me

Data_fitting.txt
<http://octave.1599824.n4.nabble.com/file/t372706/Data_fitting.txt>  



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