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Topic: Getting the plotted data from a graph
Replies: 5   Last Post: Jun 17, 2013 6:18 AM

 Messages: [ Previous | Next ]
 Louis Talman Posts: 5,100 Registered: 12/27/05
Re: Getting the plotted data from a graph
Posted: Jun 16, 2013 5:13 AM

On Sat, 15 Jun 2013 02:24:48 -0600, Lily T. <econactually@gmail.com> wrote:

> Dear All,
>
> My question is regarding the plotted data points in a graph. Assume you
> draw a graph of sinx as:
>
> g1 = Plot[Sin[x], {x, -Pi, Pi},
> Frame -> True, FrameLabel -> {"x", "y"}, ImageSize -> 2.6*72
> ]
>
> then how can I get all of the data points of this graph by using
> mathematica?
>
> This is really important for me and I couldn't find the answer anywhere
> online!
>
>
> Best,
> Lily
>

The instructions

L = {};Plot[L = Append[L, {x, Sin[x]}]; Sin[x],{x, -Pi, Pi}]

capture the data points in L.

--Louis A. Talman
Department of Mathematical and Computer Sciences
Metropolitan State University of Denver

<http://rowdy.msudenver.edu/~talmanl>

Date Subject Author
6/16/13 Bob Hanlon
6/16/13 Tomas Garza Hernandez
6/16/13 W. Craig Carter
6/16/13 Louis Talman
6/17/13 Themis Matsoukas