skewnessDS1.Rd
This function calculates the skewness of a numeric variable for each study separately.
skewnessDS1(x, method)
a list including the skewness of the input numeric variable, the number of valid observations and the study-side validity message.
The function calculates the skewness of an input variable x with three different methods.
The method is specified by the argument method
in the client-side ds.skewness
function.