Date: Thu, 2 Aug 2007 18:00:18 -0500
From: Scott Merryman <[email protected]>
Reply-To: [email protected]
To: [email protected]
Subject: Re: st: twoway connected, by()- problem
The -if- condition needs to be applied globally. Compare:
sysuse auto, clear
twoway scatter head mpg if fore == 1 || ///
line gear mpg if fore == 1, by(rep) name(gr1,replace)
twoway scatter head mpg || ///
line gear mpg || ///
if fore == 1, by(rep) name(gr2,replace)
See also:
http://www.stata.com/statalist/archive/2003-05/msg00086.html
Scott
On 8/2/07, Cathy L. Antonakos <[email protected]> wrote:
Dear Statalist,
I have tried using the following code to produce an array of graphs for only the cases in a particular group.
twoway connected walkwano hourx if w3grp_1==1 || ///
line medianrate hourx if w3grp_1==1, by(resid)
However, I get an array of graphs that includes blank graphs, for cases not in group 1.
I can call the file, select the cases and run without the if commands. That produces what I need. But I have to repeat that step multiple times in order to get separate arrays (which I want) for each cluster of cases.
I would like to use the "if" option successfully.
Can someone help?
Thank you.
Cathy Antonakos
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