summarise
From dplyr v0.3
by Hadley Wickham
Summarise multiple values to a single value.
Summarise multiple values to a single value.
Usage
summarise(.data, ...)summarise_(.data, ..., .dots)
summarize(.data, ...)
summarize_(.data, ..., .dots)
Arguments
Value
An object of the same class as .data
. One grouping level will
be dropped.
Data frame row names are silently dropped. To preserve, convert to an explicit variable.
See Also
Other single.table.verbs: arrange
,
arrange_
; filter
,
filter_
; mutate
,
mutate_
, transmute
,
transmute_
; rename
,
rename_
, select
,
select_
; slice
,
slice_
Examples
summarise(mtcars, mean(disp))
summarise(group_by(mtcars, cyl), mean(disp))
summarise(group_by(mtcars, cyl), m = mean(disp), sd = sd(disp))
Community examples
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