From help-request at octave dot org Sat Feb  5 11:21:41 2005
Subject: Re: randn newbie question
From: Paul Laub <tyrosine at gmail dot com>
To: Hamish Allan <hamish at jamkit dot com>
Cc: help at octave dot org
Date: Sat, 5 Feb 2005 09:26:04 -0800

Hamish, 

Obviously something is wrong. 

The same command on Octave 2.1.57 for Cygwin / Windows
produces a plot that looks like the Matlab one. 

Have you looked at the numbers directly? Have you
computed the mean, variance, and higher moments of
randn() output to see if they are close to theoretical
values? (That way gnuplot could be ruled out as the
source of the problem.) What does rand() output look
like? Broken too? What randn() algorithm do you use?
>> help randn   should be informative. 

Without more detail, there is not much anyone can do to
address the problem. 

Paul Laub 



On Sat, 5 Feb 2005 16:55:11 +0000, Hamish Allan <hamish at jamkit dot com> wrote:
> Hello all,
> 
> Why does:
> 
> plot(randn(2,100)', '+')
> 
> which looks like this in Matlab:
> 
> http://igor.gold.ac.uk/~map01ra/matlab_randn.jpeg
> 
> look like this in Octave:
> 
> http://igor.gold.ac.uk/~map01ra/octave_randn.jpeg
> 
> ???
> 
> Thanks,
> Hamish
> [GNU Octave, version 2.1.64 (powerpc-apple-darwin).]
> 
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