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Generate rowwise count of columns matching a set of values

Source: R/gen_rowcount.R
gen_rowcount.Rd

This function performs a rowwise count of columns in a data frame that match a set of supplied values.

Usage

gen_rowcount(data, cols, values)

Arguments

data

A data frame.

cols

<tidy-select> Columns to search across.

values

A list of values to match.

Value

An integer vector with the number of matched values.

Details

Parallelization is supported via purrr::in_parallel().

Examples

library(dplyr, warn.conflicts = FALSE)
a <- tibble(
  x = 1:3,
  y = rep(NA, 3),
  z = letters[1:3],
  aa = rep(FALSE, 3)
)
val <- list(1, NA, "a", FALSE)
gen_rowcount(a, values = val)
#> [1] 4 2 2
gen_rowcount(a, everything(), values = val)
#> [1] 4 2 2
gen_rowcount(a, starts_with(letters[25:26]), values = val)
#> [1] 2 1 1
b <- a %>% mutate(q = gen_rowcount(., values = val))
b
#> # A tibble: 3 × 5
#>       x y     z     aa        q
#>   <int> <lgl> <chr> <lgl> <int>
#> 1     1 NA    a     FALSE     4
#> 2     2 NA    b     FALSE     2
#> 3     3 NA    c     FALSE     2