topic Re: How to determine if it obeys a chi-square distribution？ in Discussions

How to determine if it obeys a chi-square distribution？

lehaofeng — Mon, 29 Apr 2024 06:40:16 GMT

I want to determine whether a set of data obeys a chi-square distribution, how do I do this with JMP? Thanks!
I looked at the distribution-continuous fit and didn't find this distribution.

Re: How to determine if it obeys a chi-square distribution？

MRB3855 — Mon, 29 Apr 2024 07:58:36 GMT

Hi @lehaofeng : The Chi-squared distribution is a special case of the Gamma distribution.

Statistical Details for Continuous Fit Distributions (jmp.com)

So, you could start via trying to fit a Gamma distribution. If it doesn't fit a Gamma, then it can't be a Chi-squared. If, however, it is Gamma...then it might be Chi-Squared. Try that then come back.

Re: How to determine if it obeys a chi-square distribution？

lehaofeng — Mon, 29 Apr 2024 08:17:07 GMT

Thanks. I'll look into it.