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MathGroup Archive 2006

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Re: Several functions in a single 2D-plot

  • To: mathgroup at
  • Subject: [mg68798] Re: Several functions in a single 2D-plot
  • From: Bill Rowe <readnewsciv at>
  • Date: Fri, 18 Aug 2006 03:13:01 -0400 (EDT)
  • Sender: owner-wri-mathgroup at

On 8/17/06 at 4:18 AM, vginer at (Vicent) wrote:

>How can I plot several functions within the same 2D graphic?

>For example, I want to draw the PDF of 3 continuous statistical
>distributions (I mean, 3 functions), but put together into the same
>2D plot.

There are a number of ways this can be done. Here are two examples:

Plot[{PDF[NormalDistribution[0, 1], x], 
    PDF[NormalDistribution[0, 1/2], x], 
    PDF[NormalDistribution[0, 2], x]}, {x, -6, 6}, 
   PlotStyle -> {Red, Blue, Black}, PlotRange -> All, 
   Axes -> None, Frame -> True]; 
Show[Block[{$DisplayFunction = Identity}, 
    {Plot[PDF[LogNormalDistribution[0, 0.5], x], {x, 0, 5}], 
     Plot[PDF[GammaDistribution[2, 1], x], {x, 0, 5}, PlotStyle -> Blue], 
     Plot[PDF[ExponentialDistribution[1], x], {x, 0, 5},PlotStyle -> Red]}]]; 
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