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MathGroup Archive 2007

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Re: How to extract values from ListPlot

  • To: mathgroup at smc.vnet.net
  • Subject: [mg81466] Re: How to extract values from ListPlot
  • From: dh <dh at metrohm.ch>
  • Date: Mon, 24 Sep 2007 04:20:12 -0400 (EDT)
  • References: <fd58oj$2dp$1@smc.vnet.net>


Hi,

it looks odd  to me if you have data, then make a plot and afterwards 

try to extract data from the plot. The direct way would be to obtain 

data points by interpolation. Look up Interpolation in the manual.

hope this helps, Daniel



vickyisai at gmail.com wrote:

> Hello

> 

> I use Mathematica 5.2.

> I generated a CDF function (cumulative distribution function) using

> ListPlot

> 

> I get a continuous plot, and now I want to sample this graph i

> obtained , that is I want to extract values of this graph at 560

> different location. (even if its range is 256, as in my case).

> How can i extract value from this plot. If I want to extract  say 1000

> samples and my range is of this plot is 256 , i need to extract values

> at non integer locations also.

> 

> How to do that.

> I don't have Image Processing package.

> 

> Thanks

> 

> 




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