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Vector variable to binary vector

Source: R/utils.R
vect_to_binary.Rd

Transform a vector to a binary vector. All values that are not 0, 1, TRUE, FALSE, or NA are transformed to NA.

Usage

vect_to_binary(vect, logical = FALSE, default = NA)

Arguments

vect

A character, factor, logical or numeric vector corresponding to a binary variable (i.e. 0 or 1). The following values are recognized:

  • character() or factor() : "TRUE", "FALSE", "0", "1", "NA" will be respectively transformed to 1, 0, 0, 1, NA. Spaces and case are ignored. All other values will be transformed to NA.

  • numeric() : 0 and 1 are kept, all other values are transformed to NA.

  • logical() : TRUE and FALSE are tansformed to 1 and0.

logical

Boolean defining if the output should be a logical vector instead of a numeric vector (i.e. 0 and 1 becomes FALSE and `TRUE).

default

The default value to use for the values that are not recognized. By default, NA is used, but it can be 0 or 1.

Value

numeric binary vector of the same size as vect with 0 and 1

Examples

vect_to_binary(
    c(0, 1, 2, 3.6, "TRUE", "FALSE", "0", "1", "NA", "B", TRUE, FALSE, NA)
)
#> Warning: NAs introduced by coercion
#>  [1]  0  1 NA NA  1  0  0  1 NA NA  1  0 NA