tidyselect_row_sums: Calculate row sums & means tidyselect-safely.

In cu-psych-r-users/cuPsychRTools: R helper functions compiled by Columbia Psychology

Description

Wrapper around rowSums etc. to allow calculating row sums and means of flexibly supplied column names from a df. Accepts select_helpers. Designed for external use in pipe-chains, outside of mutate.

Usage

tidyselect_row_sums(.data, ..., .value = "row_sum", na.rm = FALSE)

tidyselect_row_means(.data, ..., .value = "row_mean", na.rm = FALSE)

Arguments

.data	A tbl: a data.frame or tibble.
...	One or more unquoted variable names. Accepts select_helpers.
.value	The name of the new column, as a string.
na.rm	a logical value indicating whether NA values should be stripped before the computation proceeds.

Value

An object of the same class as .data, with the computed column added.

Examples

data <- tibble::tibble(x1 = 1:5, x2 = 1:5, x3 = 1:5)

tidyselect_row_sums(data, dplyr::starts_with("x"))
tidyselect_row_means(data, dplyr::starts_with("x"))

cu-psych-r-users/cuPsychRTools documentation built on July 25, 2019, 5:39 p.m.