| Re: svy and svyset after appending multiple waves of the NFHS [message #18361 is a reply to message #18335] |
Mon, 18 November 2019 07:38  |
Bridgette-DHS
Messages: 3199
Registered: February 2013
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Senior Member |
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Following is a response from DHS Research & Data Analysis Director, Tom Pullum:
In the appended file, I suggest that you includ a variable "survey" that is numbered 1, 2, 3, 4 for the successive NFHS's. You then construct the combined PSU number with one of the "egen" commands, specifically "group". That is, if the PSU is given by v021, the command would be "egen PSU_all=group(survey v021)". You need to do something similar for the strata, for example as "egen strata_all=group(survey v023)". There are other ways to develop unique id codes for the clusters and strata but this is the easiest way.
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