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help for ^levene^
by Herve M. CACI, April 2004
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Levene's T-test for equality of variances (multiple samples)
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     ^levene^ varname [^if^ exp][^in^ range], by(groupvar)

Description
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Levene's T-test is used to test the null hypothesis that multiple
population variances (corresponding to multiple samples) are equal.

The test is a one-way ANOVA on absolute deviations for each group.

Options
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Note that the by(groupvar) "option" is not optional.

Also see
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 Manual:  ^[R] oneway^
          ^[R] anova^
On-line:  help for @oneway@, @anova@
