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Re: How do I manipulate that data?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg22476] Re: [mg22403] How do I manipulate that data?
  • From: BobHanlon at aol.com
  • Date: Sat, 4 Mar 2000 02:26:41 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

data /. {x_, y_} :> {x, y^2}

Bob Hanlon

In a message dated 3/1/2000 2:11:39 AM, markgriggs at sc.rr.com writes:

>  I have a data file called data.txt.  It consists of 2 columns of
>data.  I am able to read with
>data = ReadList["/home/mark/data.txt", {Real, Real}];   I let the first
>column represent x and the second represent y.  Then I plot y vs. x
>with   ListPlot[data].    My problem is that I need to plot y^2 vs. x.
>So, how can I square all the y terms?
>


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