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Re: List & Plot: do they parse options differently?

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  • Subject: [mg128182] Re: List & Plot: do they parse options differently?
  • From: Murray Eisenberg <murray at math.umass.edu>
  • Date: Sat, 22 Sep 2012 02:45:45 -0400 (EDT)
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On Sep 21, 2012, at 4:14 AM, James Stein <james at stein.org> wrote:

> ...I fail to see why the call to Plot fails here:
>
> Clear [ s ] ;
> s = ImageSize -> Small;
> Plot [ x,  { x, 0, 3 } ,  s ]


I believe this behavior results from Plot having the attribute HoldAll. The same thing will happen for any other option (which is just an additional argument that happens to take the form of a Rule).

Just force Plot to explicitly evaluate that argument:

   Plot[x, {x, 0, 3}, Evaluate[s]]

---
Murray Eisenberg                                     
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University of Massachusetts                  413 545-2859 (W)
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Amherst, MA 01003-9305








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