From help-request at octave dot org Fri Mar 25 13:22:07 2005
Subject: Re: Please help
From: "Robert A. Macy" <macy at california dot com>
To: "Martin Ranftler" <martin at ranftler dot info>
Cc: help at octave dot org
Date: Fri, 25 Mar 2005 11:25:12 -0800

If you're plotting from the command line...
and assuming x and y are the same size vector.
note the .* operator to make the multiplication for each
array value.  You'll get an error using the plain *

try this segment...

> x = [ 1:25 ];
> y = 2*x;
> plot( sin(x).*cos(y) );

or you could..

> z = sin(x).*cos(y);
> plot( y,z );

to control ordinate and abscissa for your plot.


Don't know how to save the plots.  I've been using
"PrintScreen" on the keyboard and paintbrush <g>  
Then I get to write all over the plot whatever I want,
where ever I want.  

          - Robert -

On Fri, 25 Mar 2005 12:42:04 -0600
 "Martin Ranftler" <martin at ranftler dot info> wrote:
> Hi, I am new..
> 
> And have some problems of a typical beginner.
> 
>  
> 
>  
> 
> It is easy to plot from gnuplot: splot sin(x)*cos(y) 
> But the same example from octave (gsplot..) results in
> errormessages.. 
> Does somebody have an example for me? 
>  
> Another question: How can I unset parametric from Octave?
>  
> 
> 
> 
> Where can I find good examples for plotting?
> 
>  
> 
> Is it possible to use filenames for saved plotfiles which
> include e.g. the
> present date or time?
> 
> (e.g. plotfile_2004_05_25_19_35.emf    or so..)
> 
> 
> Thanks  
> Martin
> 



-------------------------------------------------------------
Octave is freely available under the terms of the GNU GPL.

Octave's home on the web:  http://www.octave.org
How to fund new projects:  http://www.octave.org/funding.html
Subscription information:  http://www.octave.org/archive.html
-------------------------------------------------------------