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Chi Squared   Message List  
Reply | Forward Message #59 of 369 |
I'm using the inverse method of the ChiSqrDistribution class.
However, the result I get does not seem correct, at least when
compared to the value calculated when I use CHIINV function in MS
Excel. I don't necessarily understand Chi-squared but I need it for
my current project. Can anyone explain why I'm getting this bad
result? I set the degrees of freedom = 4 and the probability to .4.
The returned result is 2.752842059 but when I run the calculation in
Excel, I get 4.044626846 using the same probability and degrees of
freedom. Any thoughts or suggestions?
Tue Jan 15, 2002 9:37 pm

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psummers8@...
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Forward 		Message #59 of 369 |
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I'm using the inverse method of the ChiSqrDistribution class. However, the result I get does not seem correct, at least when compared to the value calculated... 		psummers8
psummers8@...
Send Email 		Jan 15, 2002
9:37 pm

Both results are correct in so far as they are inverses of their respective distribution functions: cumulative(inverse(0.4)) gives back 0.4 ...
mj_hale
Offline Send Email 		Jan 16, 2002
3:21 pm
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