Confidence index of lsqcurvefit?

Hi,

I am using the lsqcurvefit function in a model, and am wondering what the default confidence index is for the coefficients that the lsqcurvefit spits out. ( x = lsqcurvefit(@myFun,x0,x,y,lb,ub,options) I have looked through the options and cannot seem to find something that will give me a confidence index of the coefficients.

Thank you in advance for any help

Answer 1

[Star Strider]

The output of 'lsqcurvefit' will not give you confidence limits on the estimated parameters. You have to use 'nlparci' to calculate them. (It defaults to 95% confidence limits, but you can change those.) You can also use 'nlpredci' to get confidence intervals on the fitted curve.