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Re: Graph feature request
From: |
Joe Beach |
Subject: |
Re: Graph feature request |
Date: |
Mon, 19 Nov 2001 02:45:31 +0300 (MSK) |
Hmm... I'll have to do some reading about @Filter, I don't remember
noticing it before. Thanks for the help, I'll post the definitions I come
up with if they work nicely.
Joe Beach
On Mon, 19 Nov 2001, Jeff Kingston wrote:
> On Sat, 17 Nov 2001 22:55:28 +0300 (MSK), Joe Beach wrote:
> >
> > Hi,
> >
> > I currently use Gnuplot to do my plotting. I like it for several reasons,
> > one of which is that it can read the data from specific columns of a text
> > file. For example, use the second column of file.txt for the x-values and
> > the fourth column of file.txt for the y-values. As far as I have been able
> > to see, there is no way to have Lout do this- you could use an @Include to
> > read a text file if x is in the first column and y is in the second
> > column, but that is about it. Is this a feature you would consider for a
> > later release?
> >
> > Joe Beach
>
> Are you on Unix? Use "cut" in a @Filter:
>
> def @Cols
> left cutopts
> right x
> {
> def @Filter { "cut " cutopts @FilterIn ">" @FilterOut }
>
> x
> }
>
> and then you can write
>
> @Data { "-f4,2" @Cols {
> @Include { mydata.txt }
> }
>
> At least, that's the basic idea.
>
> Jeff
>
>
>
>
>