Hsu, Lucy <[email protected]> asks about the syntax of -svyset-:
> For V8SE, why sometime it works with separate statements for setting
> up the sampling parameters (method 1) instead of combining all
> the sampling parameters in one statement (method 2)? Thanks a lot,
> Method 1:
> svyset strata pstrhwr
> svyset psu ppsuhrx
> svyset pweight wtper2
> svymean drvisnx hspstyn erusenx, subpop(sitesamp) obs size deft
> Method 2:
> svyset [pweight=wtper2], strata(pstrhwr) psu(ppsuhrx)
> svymean drvisnx hspstyn erusenx, subpop(sitesamp) obs size deft
I'm guessing, but Lucy is probably working with do-files that were written
prior to Stata 8. These do-files most likely have a -version- statement
somewhere at the top, otherwise they will not run properly in Stata 8.
Method 1 follows the original syntax of the -svyset- command and is only
allowed under version control, see -[P] version- or type the following from
within Stata 8:
. help version
Method 2 is the new syntax for the -svyset- command, see -[SVY] svyset- or
type the following from with Stata 8:
. help svyset
The following commands would each generate an error in Stata 8:
. version 8: svyset strata pstrhwr
. version 7: svyset [pweight=wtper2], strata(pstrhwr) psu(ppsuhrx)
--Jeff
[email protected]
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