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--- tips:weights_in_rma.mv_models [2021/07/31 09:10] – Wolfgang Viechtbauer
+++ tips:weights_in_rma.mv_models [2021/07/31 09:32] – Wolfgang Viechtbauer
@@ Line 271: / Line 271: @@
 <code rsplus>
 data.frame(k = c(table(dat$district)),
-           weight = sapply(split(wi, dat$district), sum))
+           weight = tapply(wi, dat$district, sum))
 </code>
 <code output>