<>
Having received an email privately from Eric, let me have another stab at
his problem, although an example provided by him would be helpful:
*******
clear*
set obs 92
gen dataset=_n
expand 230
bys dataset: gen smsa=_n
gen crime=100+int(300*runiform())
bys dataset: /*
*/ egen rank=rank(crime)
reshape wide crime rank, /*
*/ i(smsa) j(dataset)
*******
HTH
Martin
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Martin Weiss
Sent: Donnerstag, 29. Oktober 2009 21:09
To: [email protected]
Subject: st: RE: ST: creating new variables from a long list
<>
The totals could be as easy as a -collapse-:
*******
clear*
set obs 92
gen dataset=_n
expand 230
bys dataset: gen smsa=_n
gen crime=100+int(300*runiform())
collapse (sum) crime, /*
*/ by(dataset)
*******
which gives you an answer in -long- format (in -reshape- parlance), not wide
as you seem to request...
HTH
Martin
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Eric Uslaner
Sent: Donnerstag, 29. Oktober 2009 20:47
To: [email protected]
Subject: st: ST: creating new variables from a long list
Greetings,
I have a data set of 92 sets of crime rankings by SMSA. But whoever put
them together made a mess out of them (originally in Excel, but I have them
in Stata). The data set consists of about 230 SMSAs (standard metropolitan
statistical areas) and their crime totals and ranks in 4 columns: data set
number, SMSA name, total, rank--92 times (one for each data set number) so I
have about 30,000+ entries.
What I want to do is to create 92 * 2 variables so that the data set would
look like this:
SMSAname total1 rank1 total2 rank2...total92 rank92
ideally using SMSAname only once rather than 92 times. Any suggestions as
to how to do this would be greatly appreciated.
Thanks much,
Ric
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