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Re: newby plotting question

  • To: mathgroup at smc.vnet.net
  • Subject: [mg22757] Re: [mg22711] newby plotting question
  • From: BobHanlon at aol.com
  • Date: Fri, 24 Mar 2000 03:28:03 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

Each of these three methods are equivalent:


Plot[{Sin[x], Cos[x], Sin[x] - Cos[x]}, {x, 0, 4Pi}, 
    PlotStyle -> {RGBColor[1, 0, 0], RGBColor[0, 1, 0], RGBColor[0, 0, 1]}];

p1 = Plot[Sin[x], {x, 0, 4Pi}, PlotStyle -> RGBColor[1, 0, 0], 
      DisplayFunction -> Identity];
p2 = Plot[Cos[x], {x, 0, 4Pi}, PlotStyle -> RGBColor[0, 1, 0], 
      DisplayFunction -> Identity];
p3 = Plot[Sin[x] - Cos[x], {x, 0, 4Pi}, PlotStyle -> RGBColor[0, 0, 1], 
      DisplayFunction -> Identity];
Show[{p1, p2, p3}, DisplayFunction -> $DisplayFunction];

Show[{Plot[Sin[x], {x, 0, 4Pi}, PlotStyle -> RGBColor[1, 0, 0], 
        DisplayFunction -> Identity], 
      Plot[Cos[x], {x, 0, 4Pi}, PlotStyle -> RGBColor[0, 1, 0], 
        DisplayFunction -> Identity], 
      Plot[Sin[x] - Cos[x], {x, 0, 4Pi}, PlotStyle -> RGBColor[0, 0, 1], 
        DisplayFunction -> Identity]}, DisplayFunction -> $DisplayFunction];

Bob Hanlon

In a message dated 3/22/2000 1:56:01 AM, fschwiet at u.washington.edu writes:

>I have three lists I want to plot on the same graph, in different colors.
>My code went as follows:
>(mean and var are lists of numbers, of the same length)
>
>p1 = ListPlot[ mean, PlotRange->All];
>p2 = ListPlot[ mean + Sqrt[var],
>            DefaultColor -> RGBColor[0,1,0], PlotRange->All];
>p3 = ListPlot[ mean - Sqrt[var],
>            DefaultColor -> RGBColor[1,0,0], PlotRange->All]];
>Show[p1,p2,p3];
>
>
>But this unfortunately draws p1, p2, and p3 on separate plots before drawing
>all three on a single plot, and they were all black on the last plot anyhow.
>
>So I was clever, and came up with the following:
>
>Show[
>          ListPlot[ mean, PlotRange->All],
>          ListPlot[ mean + Sqrt[var],
>            DefaultColor -> RGBColor[0,1,0], PlotRange->All],
>          ListPlot[ mean - Sqrt[var],
>            DefaultColor -> RGBColor[1,0,0], PlotRange->All]]
>
>Which produces the same result.  ugh.  Any advice?
>


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