The -twoway- family can sometimes behave quite differently from the rest of
the graphs in Stata. IF you want to know what is going on "under the hood",
************
sysuse auto, clear
profiler on
kdensity mpg
tw (kdensity mpg)
profiler off
profiler report
************
This method results in less clutter (than the -trace-) on the screen and
still gives you the essential information.
HTH
Martin
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of George Hoffman
Sent: Wednesday, October 15, 2008 1:52 PM
To: [email protected]
Subject: st: 'twoway' syntax subtlety
I'm trying to overlay two (or more) kdensity plots.
kdensity accepts the 'norm' option
twoway kdensity does not - see log below
I thought twoway calls kdensity - but I must have a misunderstanding of
stata 10 graphics....
An explanation of principle would be most appreciated.
Thank you,
George Hoffman
This my Stata 10 log:
. two (kdensity rso2c if vmi85==0) (kdensity rso2c if vmi85==1)
. two (kdensity rso2c if vmi85==0,norm) (kdensity rso2c if vmi85==1,norm)
option norm not allowed
r(198);
. kdensity rso2c if vmi85==0,norm
. two kdensity rso2c if vmi85==0,norm
option norm not allowed
r(198);
*
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*
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* http://www.ats.ucla.edu/stat/stata/
