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st: RE: CUSUM charts


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: CUSUM charts
Date   Wed, 16 Feb 2005 21:44:53 -0000

You don't show your precise data structure but I 
guess is that no special .ado is needed for what 
you want to do. At worst, you need to 
use -sum()-, possibly in conjunction with -bysort-, 
to create the cumulative sums after which your graph will be 
one of the existing standards. 

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

Bellinda King 
 
> I am wanting to create cusum charts for individuals, I've 
> looked up the help menu and it talks about a binary variable 
> being plotted against a continuous variable. I'm not wanting 
> to do this, I'm wanting to use the known mean for the 
> variable in the population and create a chart that allows me 
> to see when or if the individuals values go out of control over time. 
> If any one could let me know whether any one has written an 
> ado-file for this type of chart or whether I'm just missing 
> something, as it would be greatly appreciated!
 

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