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Re: % POLY_FIT: Warning: Invert detected a small pivot element - help needed [message #71694 is a reply to message #71353]

Mon, 12 July 2010 16:41

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

On Jul 11, 6:43 am, landsito <u...@compgroups.net/> wrote:
> Hi, I solved this with my code:
>
> poly_coefs = poly_fit(xvector, yvector, 3,/double,status=estatus)
> if estatus eq 2 then begin
> xvector=[0,xvector]
> yvector=annularSum[xvector]
> poly_coefs = poly_fit(xvector, yvector, 3,/double,status=estatus)
> print, 'estatusss',estatus
> endif
>
> Also, you can add more cases with a case 1: ....

It's not clear to me how adding fake data points will "solve" the
problem...

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[Message index]

		% POLY_FIT: Warning: Invert detected a small pivot element - help needed By: sid on Sat, 12 June 2010 11:54
		Re: % POLY_FIT: Warning: Invert detected a small pivot element - help needed By: Craig Markwardt on Mon, 12 July 2010 16:41
		Re: % POLY_FIT: Warning: Invert detected a small pivot element - help needed By: Giuseppe Papa on Sun, 11 July 2010 03:52
		Re: % POLY_FIT: Warning: Invert detected a small pivot element - help needed By: Giuseppe Papa on Sun, 11 July 2010 03:43

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