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4.3 | 3 ratings Rate this file 20 Downloads (last 30 days) File Size: 2.92 KB File ID: #3375

Levenetest

01 May 2003 (Updated 21 Jul 2003)

Levene's test for homogeneity of variances.

File Information
Description	Levene's F test is used to test the null hypothesis that multiple population variances corresponding to multiplesamples are equal. Prior to the analysis the data are transforming to the absolute deviation of the mean. Then perform an one-way analysis of variance.
MATLAB release	MATLAB 5.3 (R11)

Tags for This File
Everyone's Tags	f test, homoscedasticity test, levenes test, probability, statistics
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Comments and Ratings (3)
22 May 2005	Marie Loukou	Good test, thanks. But for the last lines ("if P >= alpha..."), the following message appeared: "??? Error using ==> alpha Too many output arguments".
16 Oct 2005	Marie Loukou	After the following indications kindly provided by the author, 1. Levenetest(X) %here it takes the default alpha value = 0.05 2. Levenetest(X,0.1) %here you should give an alpha value ----------- alpha = 0.1; ----------- 3. Levenetest(X,alpha) %here previously you should define the alpha value The test is a succes! Thanks a lot.
04 Jun 2009	Farah	works easily and well. Thanks!

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Updates
07 May 2003	At the end of the third phrase of the description text a word of more should be eliminated (absolute).
09 May 2003	It was added an appropriate format to cite this file.
21 Jul 2003	Output results were improved.