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RE: st: serset limits are wimpy


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: serset limits are wimpy
Date   Thu, 24 Jul 2003 09:18:28 +0100

David Airey

> I should have said the graph looked something like:
>
>   |    .         .
> L|  .   .....  . .
> O| .          .   ....
> D|   ===        ==
>    --------------------
>     chromosomal position
>
> where there is a line series (periods) representing lod score vs
> chromosomal position for a series a statistical test spanning the
> chromosome. Peaks in the lod score indicate position of a gene.
> Confidence in position is designated with equal signs (a 2
> lod interval
> surrounding a peak). It's not hard to use three line commands in a
> graph tw, to generate the plot,
>
> graph tw (line lod position) (line baseline gene1) (line
> baseline gene2)
>
> But each plot takes up one serset (3 for the above command). I was
> wondering how to collapse the two plots (line baseline gene1) (line
> baseline gene2) into  (one). Doesn't seem possible, because
> graph tw
> (y1 y2 x) is not applicable here. Am I missing something easy?

As far as I understand this, it seems soluble by
a customised program built around a different
data structure.

Nick
n.j.cox@durham.ac.uk

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