Raking by Iterative Proportional Fitting (IPF): Two Margins, Four Steps
This lesson is part of the course
In this lesson
You rake the 3 × 3 table of interviews to the age margin and the region margin in turn, watch the row sums converge after two rounds and read off a raked weight.
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Lessons in this course
- Sample vs Population: Comparing the Margins (Age, Gender, Region) Locked
- Cell Weighting: Post-Stratification on Age × Region Locked
- Raking by Iterative Proportional Fitting (IPF): Two Margins, Four Steps Locked
- Weight Trimming & Capping: Limits, Rescaling and Who Is Affected Locked
- Weighted Estimates with SUMPRODUCT vs Unweighted Results Locked
- Kish Effective Sample Size & Design Effect: Raked vs Trimmed Weights Locked
- Weighted Margin of Error: z, √deff and Subgroups Locked
- Before vs After Weighting: Gap Table & Comparison Chart Locked