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MathGroup Archive 2006

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RE: Plotting multi-column data

  • To: mathgroup at smc.vnet.net
  • Subject: [mg71174] RE: [mg71100] Plotting multi-column data
  • From: "David Annetts" <davidannetts at aapt.net.au>
  • Date: Thu, 9 Nov 2006 03:40:57 -0500 (EST)

Hi David,

> I'd like to to plot multi-column data, a line of which might 
> look like, e.g.:
> 
> x1 y1 y2 y3 y4 y5 
> 
> using Mathematica.  (I might have several tens of columns of data.)
> 
> (Yes, I know MultipleListPlot would handle sets like 
> {{x1,f1(x1)},{x2,f1(x2},..}} etc, but this requires clumsily 
> defining several dozen new standalone data arrays.)
> 
> How to accomplish this efficiently appears mystically opaque 
> to my untutored eyes, or perhaps I'm addled from too much US 
> election coverage.  A Google search on this group's archives, 
> MathSource, and the Wolfram site with the inoffensive 
> keywords plot multi-column data yielded doodly-squat 
> (actually, less than that).

I'd define a function to define the new standalone arrays for me, then use
MultipleListPlot.

	dataWithOrdinate[data_?ArrayQ] := 
      Transpose[{data[[All, 1]], data[[All, #]]}] & /@ Range[
          2, Length@Transpose@data];
	MultipleListPlot[dataWithOrdinate[data]];

Regards,

Dave.


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