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Compare - Vectorized if-else

if_else2.Rd

if_else() returns a vector filled with elements selected from true, false, and (optionally) na based on the value of condition. It is a type- and size-stable version of ifelse().

Usage

if_else2(condition, true, false, na = NULL)

Arguments

condition

A logical vector.

true, false

Values to use for TRUE and FALSE values of condition.

na

Values to use for NA.

Value

A vector with the common type of true, false, and na; and the size of condition. Where condition is TRUE, the result comes from true, where FALSE it comes from false.

Examples

x <- c(NA, 1:4)
if_else2(x > 2, 1, 2) #> c(NA, 2, 1, 1, 1)
#> [1] NA  2  2  1  1
if_else2(x > 2, "small", "big") #> c(NA, "big", "big", "small", "small")
#> [1] NA      "big"   "big"   "small" "small"
if_else2(x > 2, factor("small"), factor("big")) # As above but as a factor
#> [1] <NA>  big   big   small small
#> Levels: small big

y <- as.Date("2020-01-01")
if_else2(x > 2, NA, y + x) #> c(NA, "2020-01-02", "2020-01-03", NA, NA)
#> [1] NA           "2020-01-02" "2020-01-03" NA           NA