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One-way fixed effects analysis of variance - using R

Testing homogeneity of variances with Bartlett's test


Gives something like this:

Bartlett test of homogeneity of variances data: cnt by reg Bartlett's K-squared = 132.8054, df = 4, p-value < 2.2e-16 Bartlett test of homogeneity of variances data: log(cnt + 1) by reg Bartlett's K-squared = 8.8419, df = 4, p-value = 0.06518