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st: RE: Need help with Programming multiple datasets


From   "William Buchanan" <william@williambuchanan.net>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: Need help with Programming multiple datasets
Date   Tue, 25 Jun 2013 10:48:16 -0700

Have you looked through the help files for the -forvalues-, -foreach-, and
-if- commands?  It would probably be more useful if you explain with some
type of example what it is that you are trying to accomplish explicitly.  In
both of your questions, you're referencing a local macro that was previously
defined as storing file names (not variable names).  In the second question,
if your variables are DXCCS# then there wouldn't be a way that DXCCS`number'
would evaluate to DX`number'.  

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Michael Stewart
Sent: Sunday, June 02, 2013 8:40 AM
To: statalist
Subject: st: Need help with Programming multiple datasets

Need help with Programming multiple datasets

Dear Statalist user ,
I need help with stat porgramming.

I am working with multiple datasets and with the  help of statalist users,
was able to figure out a way to use multiple datasets, complete  data
management tasks and save them under separate files

MY DATA STRUCTURE:
***************************************************************
auto-1 contains variables DX1-DX15;  variables DXCCS1-DXCCS-15 + OTHER
VARIABLES
auto-2 contains variables DX1-DX25 ;  variables DXCCS1-DXCCS-25  + OTHER
VARIABLES
auto-3 contains variables DX1-DX35 ;  variables DXCCS1-DXCCS-35  + OTHER
VARIABLES
****************************************************************


My current code is as follows
***********************************************
local ds1 "D:\_Dummy\multiple\1\auto_1.dta"
local ds2 "D:\_Dummy\multiple\2\auto_2.dta"
local ds3 "D:\_Dummy\multiple\3\auto_3.dta"
local all ds1 ds2 ds3
foreach x in `all'{
use ``x'',clear
include "D:\_Dummy\multiple\4\a.do"
include "D:\_Dummy\multiple\5\b.do"
save ``x''_new.dta,replace
}
***********************************************

NEW PROBLEM-1:
If I want to run a forvalues loop in local "a" OR local "b"  FOR ONLY
DX1-15(for auto_1 ) OR DX1-25(auto_2) OR DX1-35(auto_3) BUT SHOULD NOT
LOOP OVER ANY OTHER SIMILAR VARIABLES like DXCCS1 DXCCS2   etc

How can I modify my present forvalues loop to INCLUDE VARYING NUMBER OF DX*
VARIABLES My present loop is

forvalues y=2/15{
icd9 generate diag_`x'=DX`x', range("xxx.x") }

NEW PROBLEM-2:

If I want to run a forvalues loop in local "a" OR local "b"  FOR ONLY
DXCCS1-15(for auto_1 ) OR DXCCS1-25(auto_2) OR DXCCS1-35(auto_3) BUT
SHOULD NOT LOOP OVER ANY OTHER SIMILAR VARIABLES like DX1 DX2   etc

How can I modify my present forvalues loop to INCLUDE VARYING NUMBER OF DX*
VARIABLES My present loop is forvalues y=2/15{
icd9 generate diag_`x'=DX`x', range("xxx.x") }


IF FOREACH LOOP is better , please  let me know the appropriate code

I thank in advance for all your help.

--
Thank you ,
Yours Sincerely,
Mike.
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