dfapply | R Documentation |
An apply
-type function for data frames.
dfapply(data, FUN, select = TRUE, ...)
data |
data frame |
FUN |
a function to apply to (some) variables in the data frame |
select |
a logical, character (naming variables), or numeric vector or a
function used to select variables to which |
... |
arguments passed along to |
apply()
,
sapply()
,
tapply()
,
lapply()
,
inspect()
dfapply(iris, mean, select = is.numeric) dfapply(iris, mean, select = c(1,2)) dfapply(iris, mean, select = c("Sepal.Length", "Petal.Length")) if (require(mosaicData)) { dfapply(HELPrct, table, select = is.factor) do.call(rbind, dfapply(HELPrct, mean, select = is.numeric)) }
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