Apply one or more functions to one or more columns. Grouping variables are always excluded from modification.
summarise_each(tbl, funs, ...)summarise_each_(tbl, funs, vars)
summarize_each(tbl, funs, ...)
summarize_each_(tbl, funs, vars)
mutate_each(tbl, funs, ...)
mutate_each_(tbl, funs, vars)
a tbl
List of function calls, generated by funs, or
a character vector of function names.
Variables to include/exclude in mutate/summarise.
You can use same specifications as in select. If missing,
defaults to all non-grouping variables.
For standard evaluation versions (ending in _) these can
be either a list of expressions or a character vector.
In the future mutate_each() and summarise_each() will
be deprecated in favour of a more featureful family of functions:
mutate_all(), mutate_at(),
mutate_if(), summarise_all(),
summarise_at() and summarise_if().