Maxima Function
pearson_skewness (list)
pearson_skewness(matrix)
Pearson's skewness coefficient, defined as
_ 3 (x - med) ----------- s
med is the median of list.
Example:
(%i1) load (descriptive)$ (%i2) load (numericalio)$ (%i3) s1 : read_list (file_search ("pidigits.data"))$ (%i4) pearson_skewness (s1), numer; (%o4) .2159484029093895 (%i5) s2 : read_matrix (file_search ("wind.data"))$ (%i6) pearson_skewness (s2); (%o6) [- .08019976629211892, .2357036272952649, .1050904062491204, .1245042340592368, .4464181795804519]