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BFtest

08 May 2003 (Updated 21 Jul 2003)

Brown-Forsythe's test for homogeneity of variances.

File Information
Description	Brown-Forsythe's test is developed to estimate whether more than two groups are homoscedastic. In the Brown-Forsythe's test the data are transforming to yij = abs[xij - median(xj)] and uses the F distribution performing an one-way ANOVA using y as the dependent variable. The Brown-Frosythe statistic is corrected for artificial zeros occurring in odd sized samples.
MATLAB release	MATLAB 5.3 (R11)

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Everyone's Tags	brownforsythes test, homoscedasticity test(2), probability, statistics
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Comments and Ratings (1)
01 May 2007	Paolo Zagaglia	good coding. finally something in matlab for a statistical test not many people know about. nice output. i enjoyed it.

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Updates
15 May 2003	It was added an appropriate format to cite this file.
21 Jul 2003	Output results were improved.