[R] Looking for transformation to overcome heterogeneity of variances

From: Paul Smith <phhs80_at_gmail.com>
Date: Thu 03 Aug 2006 - 23:33:28 EST

Dear All

My data consists in 96 groups, each one with 10 observations. Levene's test suggests that the variances are not equal, and therefore I have tried to apply the classical transformations to have homocedasticity in order to be able to use ANOVA. Unfortunately, no transformation that I have used transforms my data into data with homocedasticity. The histogram of variances is at


Is someone able to suggest to me a transformation to overcome the problem of heterocedasticity?

Thanks in advance,


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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Received on Thu Aug 03 23:41:23 2006

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