Ftest: Difference between revisions
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===Purpose=== | ===Purpose=== | ||
Inverse F test and F test. | Inverse F test and F test. | ||
===Synopsis=== | ===Synopsis=== | ||
:fstat = ftest(p,n,d,''flag'') | :fstat = ftest(p,n,d,''flag'') | ||
===Description=== | ===Description=== | ||
fstat = ftest(p,n,d) or fstat = ftest(p,n,d,1) calculates the F statistic fstat given the probability point p and the number of degrees of freedom in the numerator n and denomenator d. | fstat = ftest(p,n,d) or fstat = ftest(p,n,d,1) calculates the F statistic fstat given the probability point p and the number of degrees of freedom in the numerator n and denomenator d. | ||
fstat = ftest(p,n,d,2) calculates the probability point fstat given the F statistic p and the number of degrees of freedom in the numerator n and denomenator d. | fstat = ftest(p,n,d,2) calculates the probability point fstat given the F statistic p and the number of degrees of freedom in the numerator n and denomenator d. | ||
===Examples=== | ===Examples=== | ||
a = ftest(0.05,5,8); returns the value 3.6875 for a, and | a = ftest(0.05,5,8); returns the value 3.6875 for a, and | ||
a = ftest(3.6875,5,8,2); returns the value 0.050 for a. | a = ftest(3.6875,5,8,2); returns the value 0.050 for a. | ||
===See Also=== | ===See Also=== | ||
[[chilimit]], [[statdemo]], [[ttestp]] | [[chilimit]], [[statdemo]], [[ttestp]] | ||
Revision as of 15:25, 3 September 2008
Purpose
Inverse F test and F test.
Synopsis
- fstat = ftest(p,n,d,flag)
Description
fstat = ftest(p,n,d) or fstat = ftest(p,n,d,1) calculates the F statistic fstat given the probability point p and the number of degrees of freedom in the numerator n and denomenator d.
fstat = ftest(p,n,d,2) calculates the probability point fstat given the F statistic p and the number of degrees of freedom in the numerator n and denomenator d.
Examples
a = ftest(0.05,5,8); returns the value 3.6875 for a, and
a = ftest(3.6875,5,8,2); returns the value 0.050 for a.