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Re: How do I manipulate that data?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg22488] Re: [mg22403] How do I manipulate that data?
  • From: "Tomas Garza" <tgarza at mail.internet.com.mx>
  • Date: Sat, 4 Mar 2000 02:26:53 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

mark griggs [markgriggs at sc.rr.com] wrote:

>   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?

newdata={#[[1]],#[[2]]^2}&/@data

Tomas Garza
Mexico City


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