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MathGroup Archive 2001

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RE: Multiple scales for Y axis of plot?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg31108] RE: [mg31094] Multiple scales for Y axis of plot?
  • From: David.Annetts at csiro.au
  • Date: Wed, 10 Oct 2001 03:43:20 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

Hi Cristopher,

> I have a typical multi-expression plot like this:
> 
> Plot[ {f1, f2}, {x,a,b}, PlotStyle->{RGBColor[1,0,0], RGBColor[0,0,1]}
> ].
> 
> On the Y axis, I want to have a different scale for each of the two
> functions.  How can I generate another scaled Y axis adjacent to the
> default one, or in general acheive this sort of thing?  I anticipate a
> lengthy process of building up all the graphics primitives, 
> but before I
> figure all that out, I'm wondering if there is a reasonably easy way.

It's straightforward (and instructive) if a little messy using a brute-force
generate-separately-an-combine approach.  So you may want to check the FAQ.


Provided you have > V3.0, you can have the dirty work done for you using the
function at
http://support.wolfram.com/mathematica/graphics/decorations/twoaxisgraph.htm
l

Regards,

Dave.
--------------------------------------------------------------
  David Annetts, EM Modelling Analyst, CSIRO DEM, North Ryde
  Tel: (+612) 9490 5416		
  Fax: (+612) 9490 5467		  David.Annetts at dem.csiro.au
                 Include "usual_disclaimers"
--------------------------------------------------------------


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