From bug-octave-request at che dot utexas dot edu  Thu Sep  8 02:09:02 1994
Subject: problem with skewness and kurtosis
From: pcasta at auto dot emn dot fr (Castagliola Philippe 40448375)
To: bug-octave at che dot utexas dot edu
Date: Thu, 8 Sep 1994 08:08:17 +0100 (BST)

Here is a sample octave input

Octave, version 1.0.  Copyright (C) 1992, 1993, 1994 John W. Eaton.
This is free software with ABSOLUTELY NO WARRANTY.
For details, type `warranty'.

octave:1> rand('normal');
octave:2> v=rand(100,1);
octave:3> skewness(v)   
warning: division by zero
ans = -Inf
octave:4> kurtosis(v)
warning: division by zero
ans = Inf
octave:5> 

If you take a look to skewness.m and kurtosis.m, you can see

  [nr, nc] = size (x);
  if (nr == 1 || nc == 1)
    n = max (nr, nc); <--------------------- here is the error

If x is a vector (row or column), then n always equal to one !
n = max([nr, nc]) will be better, isn't it ?

CASTAGLIOLA Philippe
Ecole des Mines de Nantes
pcasta at auto dot emn dot fr