MATLAB: Polyfitting warning

polyfit warning

hey guys,

when I am using the polyfit function i get the following error printing in the command window:

"Warning: Polynomial is badly conditioned. Add points with distinct X values, reduce the degree of the polynomial, or try centering and scaling as described in HELP POLYFIT. "

I was wondering if there is a way to suppress the printing of this warning in the command window. I know what I am trying to do is correct for this situation. but I just wish it would stop printing it.

Best Answer

I'll take you at your word that you know what you are doing.

ws = warning('off','all');  % Turn off warning
P = polyfit(x,y,N);
warning(ws)  % Turn it back on.

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MATLAB: Warning supression under parfor

This is because the warning is being thrown from the workers which have not seen the "warning off" suppression.

To turn it off on the workers use:

pctrunonall warning_off_etc

and

doc pctrunonall

MATLAB: Polyfitting in for loop

Without having your data and just looking at your code, I observe that you have

for n = 1 : 1 : 48
...
clippedfP2=clippedfP(1,70);
...
temp = polyfit(clippedfP2 (n,:) ,clippedRatioP12 (n,:) ,1); % least squares fitting to a line

so it appears you are getting a variable clippedfP2 with just one row and then you are indexing into its nth row.

Also, in order to get more and better answers, consider editing your submission and putting all the code into "code" format.

Best Answer

Related Solutions

MATLAB: Warning supression under parfor

MATLAB: Polyfitting in for loop

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