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Re: st: RE: histogram with overlaid normal error


From   Thomas <tpt21@cam.ac.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: histogram with overlaid normal error
Date   Fri, 01 Feb 2008 17:50:04 +0000

thanks!

it seems it was some missing values that caused a problem for normal but not for kdensity.

Nick Cox wrote:

In Stata 10, I tried this
sysuse auto, clear histogram mpg, by(foreign) normal
without problem.
Nick n.j.cox@durham.ac.uk
Thomas Triebs

the following works fine:
histogram /varname/, kdensity by(yr)

however when I do the same with a normal distribution:
histogram /varname/, normal by(yr)

I get the following error:
error in expression: normden(x,,)*1


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--
________________________________
Thomas Triebs
email: tpt21@cam.ac.uk

PhD Candidate
Judge Business School
University of Cambridge

Member of the Electricity Policy
Reseach Group
www.electricitypolicy.org.uk

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