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Re: st: Using the "collapse" command to generate median and range


From   Richard Goldstein <richgold@ix.netcom.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Using the "collapse" command to generate median and range
Date   Thu, 15 Nov 2012 12:55:31 -0500

two of the options for the collapse stats are the "min" and the "max";
the difference is the range

Rich

On 11/15/12 12:30 PM, Sarah Sorscher wrote:
> Dear list,
> 
> I am using the "collapse" command to generate summary statistics for my data. The following code gives me median, mean, standard deviation, and number (n) for my variable, *duration*, aggregated by *treatment* and *sickestpt*.
> 
> . collapse (p50) mediandur=duration (mean) meandur= duration (sd) sddur=duration (count) n=duration, by(treatment sickestpt)
> 
> But I can't figure out how to generate a range.
> 
> I haven't been able to find range in the Summary Statistics section of the STATA help manual, and searches churn up too many unrelated uses of the term "range."
> 
> I considered adding the following: 
> (p99) hirangedur=duration (p1) lorangedur=duration
> 
> But this would only get me the 99th and 1st percentile, as opposed to range. 
> 
> Is there any term I could use to collapse for range?
> 
> Sarah
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