| Combining sampling strata categories [message #7081] |
Thu, 20 August 2015 13:01  |
Tracy
Messages: 1
Registered: August 2015
|
Member |
|
|
Hello,
I am having difficulty with running a linear regression once I have completed the svyset command. All the F and P values are marked as missing in the regression output in STATA. In my svyset command I have b_strata as my strata variable and I found that this gives me 1037 strata, a large number of which have only 1 primary sampling unit. This appears to be the problem as when I remove the strata element of my svy weighting command, then the regression output includes F and P values, the only issue is it is not representative of the general population. Is it acceptable to combine sampling categories, or will this lead to the estimates I generate still being non-representative of the general population? Or should I use an extra command during svyset such as singleunit(certainty)?
This is the error message I get:
Note: 2 strata omitted because they contain no population members.
Note: missing standard errors because of stratum with single sampling unit.
Thanks you for your help,
Tracy
|
|
|
|
The DHS Program User Forum
Members
Search
Help
Register
Login
Home
