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st: RE: percentage format


From   "Harry Comber" <h.comber@ncri.ie>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: percentage format
Date   Thu, 10 Feb 2011 09:23:11 -0000

Thanks for the information. My apologies for an error in the original
question, where I should have written "mean" and not "sum", as pointed
out by Caleb, and as I realised after I posted the question. As I said,
I knew there were workarounds, but it would be more convenient not to
have to create more variables and also have to add in "%" signs later.
If there is no such format, I'll work out something else.
Harry

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-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Nick Cox
Sent: Wednesday, February 09, 2011 5:11 PM
To: 'statalist@hsphsun2.harvard.edu'
Subject: st: RE: RE: percentage format

I was thinking that you wanted an explicit "%" sign. Perhaps so, perhaps
not. If you don't, then as Caleb advised it is often easy enough. 

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

Nick Cox

There is no such format that I know of. I can't think of a reason for
not documenting it as others would want it too for your reasons. 

In some circumstances you can mimic this by creating a string variable
such as below:  

. sysuse auto 

. su weight

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      weight |        74    3019.459    777.1936       1760       4840

. gen sweight = string(100 * weight/r(mean), "%8.2f") + "%"

. l sweight in 1/10

     +---------+
     | sweight |
     |---------|
  1. |  97.04% |
  2. | 110.95% |
  3. |  87.43% |
  4. | 107.64% |
  5. | 135.12% |
     |---------|
  6. | 121.54% |
  7. |  73.85% |
  8. | 108.63% |
  9. | 128.50% |
 10. | 112.60% |
     +---------+

I am not clear that this helps you with -table-. Some tables are easier
to mimic than others. Two- and higher-dimensional tables are naturally
more difficult. 

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

Harry Comber

Is there an extension of the Stata -format- command which produces
percentage formats? I would like to use this in the -table- command as
in (hypothetically):
	table sex agegroup, c(sum surgery) format(%2.1p)
If "surgery" is either 0 (no) or 1 (yes) for each individual, this would
give a table of % having surgery. I know there are other ways of doing
this but the tables are typically much more complex than the example
given and it would be very useful to me if I could format the output as
percentages.


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