| Re: How to arrive at final wealth index score using PCA [message #28714 is a reply to message #28666] |
Wed, 28 February 2024 14:01  |
Janet-DHS
Messages: 720
Registered: April 2022
|
Senior Member |
|
|
Following is a response from DHS staff member, Tom Pullum:
Yes, you can match the SPSS procedure with Stata. Have you looked at the DHS website (https://www.dhsprogram.com/topics/wealth-index/index.cfm)? MANY variables go into that PCA. Various people have tried to simplify the construction, and I support that, but if you simplify it you will not get a match.
The conversion to quintiles is a little more complex. The following lines, applied the HR file, show how to do it ("mem" is the number of household members). You have to do it with the HR file because everyone in the same household has the same value of the continuous index and is in the same quintile.
set more off
use "...NGHR7AFL.DTA" , clear
keep hv001 hv002 hv005 hv012 hv013 hv270 hv271
gen mem = hv012
replace mem = hv013 if mem == 0
gen pwt=mem*hv005
gen wt=pwt/1000000
xtile hv270_test1=hv271 [pweight=pwt], nquantiles(5)
tab hv270 hv270_test1 [iweight=wt]
|
|
|
|
The DHS Program User Forum
Members
Search
Help
Register
Login
Home
