Displaying 1 result from an estimated 1 matches for "platykurtosis".
2006 Apr 27
1
Looking for an unequal variances equivalent of the Kruskal Wallis nonparametric one way ANOVA
...e both non-normal in nature
and which exhibit unequal variances and unequal sample sizes across the 4
treatment levels. My particular concern is to be able to discrimintate
between the 4 different treatments (as per the Tukey HSD in happier times).
To be precise, the data exhibit negative skew and platykurtosis and I was
unable to obtain a sensible transformation to normalise them (obviously
trying subtracting the value from range maximum plus one in this process).
Hence, the usual Welch variance-weighted one way ANOVA needs to be replaced
by a nonparametric alternative, Kruskal-Wallis being ruled out for...