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pbiecek/PISA_szacujemy

Created January 18, 2015 21:40
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PISA_szacujemy
wynik <- badanie %>%
do(data.frame(svymean(~PV1MATH,design = .$schemat)))
wynik$CNT <- badanie$CNT
names(wynik)[1] <- 'PV1MATH'
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