Re: How do I manipulate that data?
- To: mathgroup at smc.vnet.net
- Subject: [mg22449] Re: How do I manipulate that data?
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Sun, 5 Mar 2000 00:23:45 -0500 (EST)
- Organization: Universitaet Leipzig
- References: <89iaoe$msi@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hi,
ListPlot[data /. {x_?NumericQ,y_?NumericQ} :> {x, y^2}]
will work.
Hope that helps
Jens
PS: Who was Heisenburg ? Heisenberg ?
mark griggs wrote:
>
> 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
>
> --
> Heisenburg may have slept here
> ------------------------------