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MathGroup Archive 2005

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Re: Plotting just specific points

  • To: mathgroup at smc.vnet.net
  • Subject: [mg54110] Re: [mg54043] Plotting just specific points
  • From: Bob Hanlon <hanlonr at cox.net>
  • Date: Thu, 10 Feb 2005 02:48:16 -0500 (EST)
  • Reply-to: hanlonr at cox.net
  • Sender: owner-wri-mathgroup at wolfram.com

Needs["Graphics`"];

a={5,1,2,2,6,7,2,2,8,2};

pts=Thread[{Range[Length[a]],a}];

ListPlot[a,Epilog->
      {AbsolutePointSize[4],
        {If[#[[2]]==2,Red,Blue],
              Point[#]}&/@pts}];

Show[Graphics[{AbsolutePointSize[4],
        {If[#[[2]]==2,Red,Blue],Point[#]}&/@
          pts}],Axes->True];


Bob Hanlon

> 
> From: zak <chocolatez at gmail.com>
To: mathgroup at smc.vnet.net
> Date: 2005/02/09 Wed AM 09:27:15 EST
> To: mathgroup at smc.vnet.net
> Subject: [mg54110] [mg54043] Plotting just specific points
> 
> if i have the list:
> a={5,1,2,2,6,7,2,2,8,2}
> and in the ListPlot[a]  i want to show only the points wich represent
> only the "2" while preserving the positions of the "2" in the list, so
> i could focus my attention to a specific wanted values, how could i do
> that
> or even better if it is possible to plot the whole values of
> ListPlot[a] while making the points "2" in red color as an example.
> thanks
> zak
> 
> 


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