### Copyright (C) 1996 John W. Eaton
###
### This file is part of Octave.
###
### Octave is free software; you can redistribute it and/or modify it
### under the terms of the GNU General Public License as published by
### the Free Software Foundation; either version 2, or (at your option)
### any later version.
###
### Octave is distributed in the hope that it will be useful, but
### WITHOUT ANY WARRANTY; without even the implied warranty of
### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
### General Public License for more details.
###
### You should have received a copy of the GNU General Public License
### along with Octave; see the file COPYING.  If not, write to the Free
### Software Foundation, 59 Temple Place - Suite 330, Boston, MA
### 02111-1307, USA.

## usage: ylabel (text)
##
## Defines a label for the y-axis of a plot.  The label will appear the
## next time a plot is displayed.
##
## See also: plot, semilogx, semilogy, loglog, polar, mesh, contour,
##           bar, stairs, gplot, gsplot, replot, xlabel, title

function ylabel (text)

  if (nargin != 1)
    usage ("ylabel (text)");
  endif

  if (isstr (text))
    command = sprintf ("set ylabel \"%s\"", text);
    eval (command);
  else
    error ("ylabel: text must be a string");
  endif

endfunction