Maxima Function
kurtosis (list)
kurtosis(matrix)
The kurtosis coefficient, defined as
n ==== 1 \ _ 4 ---- > (x - x) - 3 4 / i n s ==== i = 1
(%i1) load (descriptive)$ (%i2) load (numericalio)$ (%i3) s1 : read_list (file_search ("pidigits.data"))$ (%i4) kurtosis (s1), numer; (%o4) - 1.273247946514421 (%i5) s2 : read_matrix (file_search ("wind.data"))$ (%i6) kurtosis (s2); (%o6) [- .2715445622195385, 0.119998784429451, - .4275233490482866, - .6405361979019522, - .4952382132352935]