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Ajout d'un library manquant dans la partie données pondérées
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juba committed Nov 14, 2013
1 parent 03eb230 commit 1103faa
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Expand Up @@ -4212,6 +4212,7 @@ calculer des statistiques simples pondérées\footnote{Les fonctions
On les utilise de la manière suivante~:

<<wtdmean,warning=FALSE,message=FALSE,cache=FALSE>>=
library(questionr)
mean(d$age)
wtd.mean(d$age, weights=d$poids)
wtd.var(d$age, weights=d$poids)
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