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Doing Better than the Average

The standard way to estimate the an expected value of a population from a sample of values v1 … vn is to compute the average (1/n) sumi = 1…nvi. It is well known in statistics that for grouped data, there are other estimators that can have smaller expected square error. […]

Partial Pooling for Lower Variance Variable Encoding

.main-container { max-width: 940px; margin-left: auto; margin-right: auto;}code { color: inherit; background-color: rgba(0, 0, 0, 0.04);}img { max-width:100%; height: auto;}.tabbed-pane { padding-top: 12px;}button.code-folding-btn:focus { outline: none;} $(document).ready(function () { window.buildTabsets(“TOC”); }); Banaue rice terraces. Photo: Jon Rawlinson In a previous article, we showed the use of partial pooling, or hierarchical/multilevel […]