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Re: Re:How do I manipulate that data?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg22496] Re: [mg22403] Re:How do I manipulate that data?
  • From: Jacqueline Zizi <jazi at club-internet.fr>
  • Date: Sun, 5 Mar 2000 00:24:32 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

Hi Marks,

ListPlot[data /. {x_,y_} -> {x, y^2}]

should works


Question:
=========

Hello all,
  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?

regards

mark


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