Hello,
I get different results for calculating skewness and kurtosis when using stat.desc (pastecs package) and norm (QuantPsyc Package). Does anybody know why? And which calculation is correct?
I attached a screenshot of the results with both methods for my variable "UW".
Kind regards
Christiane
Welcome to the community!
I think you should use stat.desc if you are looking for descriptive statistics. The norm is testing whether the distribution is symmetric or not, and I don't think it uses \gamma_1 itself as the statistic.
Take a look at these source codes:
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