07-06-2015 12:58 AM
Dear all, hope you are doing well.
I wish to generate survey weights by 'Manual Iterative Solution' as stated here Introduction to Survey Weights — PRI Help
•Example with three characteristics A, S, E
–1. Compute A weight (wA) and weight data by this weight
•Generate the weighted frequency table for S
–2. Compute S weight (wS) and weight by wA*wS
•Generate the weighted frequency table for E
–3. Compute E weight (wE) and weight by wA*wS*wE
•Generate the weighted frequency for A
–4. Compute a second A weight( wA2) and weight by wA*wS*wE*wA’
•Generate the weighted frequency for S
–5. Compute a second S weight (wS2) and weight by wA*wS*wE*wA2*wS2
•Generate the weighted frequency for E
–6. Compute a second E weight (wE2) and weight by wA*wS*wE*wA2*wS2*wE2
–Continue process until the weighted frequencies and the population frequencies don’t change. Usually converge after two or three iterations (or less)
My question is how are the second weights generated starting from step 4? I understand wA is the population proportion A over the sample proportion A.
Your help is greatly appreciated. Thank you very much.