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SciMax Toolbox >> pearson_skewness

pearson_skewness

Maxima Function

Calling Sequence

pearson_skewness (list)
pearson_skewness(matrix)

Description

Pearson's skewness coefficient, defined as

_
3 (x - med)
-----------
  s
where

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]

See also functions , and .

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