dplyr (version 0.4.0)

mutate: Add new variables.

Description

Mutate adds new variables and preserves existing; transmute drops existing variables.

Usage

mutate(.data, ...)
mutate_(.data, ..., .dots)
transmute(.data, ...)
transmute_(.data, ..., .dots)

Arguments

.data

A tbl. All main verbs are S3 generics and provide methods for tbl_df, tbl_dt and tbl_sql.

...

Name-value pairs of expressions. Use NULL to drop a variable.

.dots

Used to work around non-standard evaluation. See vignette("nse") for details.

Value

• An object of the same class as .data.

  Data frame row names are silently dropped. To preserve, convert to an explicit variable.

See Also

Other single.table.verbs: arrange, arrange_; filter, filter_; rename, rename_, select, select_; slice, slice_; summarise, summarise_, summarize, summarize_

Examples

mutate(mtcars, displ_l = disp / 61.0237)
transmute(mtcars, displ_l = disp / 61.0237)

mutate(mtcars, cyl = NULL)

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