How to calculate Chi-square statistic
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Dear Support,
I am fitting a distribution to data and trying to perform chi-square goodness-of-fit test.
I have calculated the likelihood values and wanted to perform goodness-of-fit test
However, having read through the Help menus, I tried to run the script below but am getting error:
x=claims; [h,p,stats] = chi2gof(X,'cdf','weibull',nparams,2)
where claims is 1xn vector
I do not know where I have gone wrong and would appreciate anyone's assistance to resolve this.
Also, I needed the script to calculate chi-square test statistic for Negative Binomial distribution.
Much thanks in advance
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Accepted Answer
Tom Lane
on 24 May 2013
I believe you got an answer separately on comp.soft-sys.matlab, but:
- replace 'weibull' by @wblcdf (not in quotes)
- replace nparams by 'nparams' (in quotes)
Try @nbincdf to use the negative binomial cdf.
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