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st: RE: Superimposed graphs


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: Superimposed graphs
Date   Mon, 3 Feb 2003 20:19:10 -0000

Rod Hunter
> 
> I would like to compare the normal curves for a number of 
> parameters by 
> having the one graph with the normal curves superimposed.
> 
> Is there a way of doing this in Stata?
> 
> Also, is there a way of graphing normal curves without the 
> histograms 
> (bin doesn't help)?

You are referring to Stata 7, it seems. 

If you have several means and standard deviations, 
you just need to use -range- to set a variable 
with desired range and use the -normden()- function. 

e.g. 

clear
set obs 1001
range x 0 10 
gen n1 = normden(x-5,1)
gen n2 = normden(x-4,0.8)
gen n3 = normden(x-6,1.2)
graph n? x , c(sss) s(iii)


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