Chi square on a custom equation plot

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Kim Paterson
Kim Paterson 2019-2-26
回答： Abhishek Singh 2019-3-8
Hello!
sorry if this may seem like a silly question, but I am having trouble with finding th chi^2 and reduced chi^2 values for my efficiency plot. I generated a code of my plot which i did on the curve fitting app, and I'm not sure how to go about writing in the chi^2 for it. My plot looks like this
x.jpg
Thank you!

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回答（1 个）

Abhishek Singh
Abhishek Singh 2019-3-8
I’m not very clear about the question you asked but I understand you need to find Chi-square value and reduced Chi-square value.
Formula for finding the Chi-square value is:
chi-square.jfif
This can be achieved in MATLAB using this.
h = chi2gof(x)
Refer this link for the same.
You can find reduced Chi-square value through dividing the Chi-square value by degrees of freedom.
I hope this helps.

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