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st: AW: rounding a tempvar


From   "Martin Weiss" <[email protected]>
To   <[email protected]>
Subject   st: AW: rounding a tempvar
Date   Tue, 23 Jun 2009 18:23:47 +0200

<> 

Use "macro extended functions" as in - help extended_fcn-

*************
clear*
drawnorm x y, n(100) /* 
 */ corr(1,0.71 \ 0.71, 1) /* 
 */ cstorage(full)

corr

di in red `r(rho)'
di in red %3.2fc `r(rho)'

local wcorr: /* 
 */ di %3.2fc `r(rho)'

di `wcorr'
*************



HTH
Martin

-----Ursprüngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von Cathy L.
Antonakos
Gesendet: Dienstag, 23. Juni 2009 18:18
An: [email protected]
Betreff: st: rounding a tempvar

Dear Statalist,

I want to display a correlation on a graph, rounded to 2 decimal places. A
new, temporary variable, generated as follows, does not produce the rounded
correlation I expect (r = 0.71).

. corr wandurav wanrate
(obs=177)

              | wandurav  wanrate
-------------+------------------
     wandurav |   1.0000
      wanrate |   0.7085   1.0000

. display `r(rho)'
.70846375

. tempvar wcorr

. gen `wcorr' = round(`r(rho)', .01)

. display `wcorr'
.70999998


There must be a simple way to do this. 
Thanks for your help.
Cathy

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