From help-request at octave dot org Mon Aug 23 09:38:20 2004
Subject: Re: an array with negative index
From: Mike Miller <mbmiller at taxa dot epi dot umn dot edu>
To: Jean-Michel besnard <besnard at tekkno dot net>
cc: help-octave at bevo dot che dot wisc dot edu, Help-Octave List <help@octave.org>
Date: Mon, 23 Aug 2004 09:30:28 -0500 (CDT)

On Mon, 23 Aug 2004, Jean-Michel besnard wrote:

> I wish to plot a distribution that could look like:
> coefficient value: -4  -3  -2  -1  0  1  2  3  4
> number of hits:    0    5   9  12  17 18 13 5  1
> 
> since an array starts at 1, I can't possibly store the "number of hits" 
> with an index corresponding to their "coefficient value".


The plot command allows you to specify both X and Y values.  See "help 
plot" in octave.  You need something like this:

Y = [0    5   9  12  17 18 13 5  1]';
X = [-4:4]';
plot(X,Y)

Mike

-- 
Michael B. Miller, Ph.D.
Assistant Professor
Division of Epidemiology
and Institute of Human Genetics
University of Minnesota
http://taxa.epi.umn.edu/~mbmiller/



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