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Create, modify and delete columns

Source: R/dplyr_methods.R
mutate.harp_list.Rd

This is the harp_list method for mutate(). It works in exactly the same way except that a harp_list is returned. To use this function, the dplyr package must be attached and the .harp_list suffix can be dropped. Note that transmute() does the same as mutate(), except that only the modified and / or created columns are kept.

Usage

# S3 method for harp_list
mutate(.data, ...)

# S3 method for harp_list
transmute(.data, ...)

Arguments

.data

A data frame, data frame extension (e.g. a tibble), or a lazy data frame (e.g. from dbplyr or dtplyr). See Methods, below, for more details.

...

<data-masking> Name-value pairs. The name gives the name of the column in the output.

The value can be:

  • A vector of length 1, which will be recycled to the correct length.

  • A vector the same length as the current group (or the whole data frame if ungrouped).

  • NULL, to remove the column.

  • A data frame or tibble, to create multiple columns in the output.