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MathGroup Archive 1999

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Re: Preventing plotting on output

  • To: mathgroup at smc.vnet.net
  • Subject: [mg20125] Re: [mg20090] Preventing plotting on output
  • From: BobHanlon at aol.com
  • Date: Sat, 2 Oct 1999 03:04:53 -0400
  • Sender: owner-wri-mathgroup at wolfram.com

Adam,

First, in Show you have to refer to the plots by the names that you assigned 
them. Second, use Evaluate.

nodisp = DisplayFunction -> Identity;
graph1 = Plot[Sin[2 Pi x], {x, 0, 2}, Evaluate[nodisp]] ;    
graph2 = Plot[Sin[4 Pi x], {x, 0, 2}, Evaluate[nodisp]];
Show[{graph1, graph2}, DisplayFunction -> $DisplayFunction];

Bob Hanlon

In a message dated 9/30/1999 6:35:30 AM, adam.smith at hillsdale.edu writes:

>I know I could find the answer to this if I looked hard enough through
>the Help and/or Manual, but I am certain one of the experts out there
>will have the solution immediately.
>
>I want to construct some plots and then display them combined on one
>graph.  The Plot[] for each individual plot is fairly lengthy and I was
>hoping to save some space by replacing the "DisplayFunction->Identity"
>with a single word like "nodisp".  In the final Show[] I would then
>turn the display back on with the
>usual "DisplayFunction>$DisplayFunction" (maybe even equate it with a
>single term like "disp").
>
>Here is a simplified example of what I quickly tried without success
>
>nodisp = DisplayFunction -> Identity
>
>graph1 = Plot[Sin[2 Pi x],{x,0,2},nodisp]     Error messages show up
>graph2 = Plot[Sin[4 Pi x],{x,0,2},nodisp]
>
>Show[{plot1,plot2},DisplayFunction -> $DisplayFunction]
>
>I realize I could use SetOptions[] to temporarily turn off and turn on
>display, but defining nodisp seems more natural and intuitive to me.
>


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