<>
You can obtain the -sort- order of a dataset on disk from
*******
describe using "C:\Users\martin\Documents\Stata\new.dta", short varlist
di in r "`r(sortlist)'"
*******
Put your own path in between the quotation marks...
HTH
Martin
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of [email protected]
Sent: Sonntag, 29. November 2009 10:36
To: statalist
Subject: st: Is it necessary to sort data before using -cf-?
Dear statalists,
Is it necessary to sort data before using -cf-?
Without sorting, I found two same datasets are reported difference. However,
I found no reference in -help cf-.
If necessary, how to determine the sorted variable(s) if I compare all the
variables or certain variables?
Does the sorted variable need to have no duplicates?
For example,
. sysuse auto,clear
(1978 Automobile Data)
. sort turn
. save new,replace
file new.dta saved
. sysuse auto,clear
(1978 Automobile Data)
. sort rep78
. cf _all using new
make: 74 mismatches
price: 74 mismatches
mpg: 69 mismatches
rep78: 63 mismatches
headroom: 64 mismatches
trunk: 72 mismatches
weight: 73 mismatches
length: 73 mismatches
turn: 71 mismatches
displacement: 72 mismatches
gear_ratio: 72 mismatches
foreign: 42 mismatches
r(9);
.
Could anyone help me? Thank you.
Best regards,
Rose
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