Problem with Levels-PEN

[Marcelo Barreiro <marcelo@xxxxxxxxxxxxx>]

Hi ferreters,

I am having problems with the command levels when I try to use PEN (or
LINE, or DARK, etc...)

If I write:

yes? cont/nolabels/levels="PEN(-2,-0.2,0.2,3) PEN(0.2,2,0.2,4)"  slope

I get the error message

**ERROR: command syntax: PEN(-2,-0.2,0.2,3) PEN(0.2,2,0.2,4) must be in
parentheses

If I put parentheses I get:

Syntax error                  
  LEV,()(PEN(-2,-0.2,0.2,3) PEN(0.2,2,0.2,4))
         ^

and the contour map is done, but with arbitrary contours.

Any idea of what is happening??
Help appreciated!

Marcelo 

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Marcelo Barreiro
Dept. of Oceanography, Physical Section
College of Geosciences and Maritime Studies
Texas A&M University