Replace missing values

Replace missing values in a data.frame or vector.

Usage

replace_na(data, replace, ...)

Arguments

data

A data.frame or vector.

replace

If data is a data.frame, a named list giving the value to replace NA with for each column. If data is a vector, a single value used for replacement.

...

Additional arguments passed onto methods; not currently used.

Value

If data is a data.frame, replace_na() returns a data.frame. If data is a vector, replace_na() returns a vector of class determined by the union of data and replace.

See also

na_if() to replace specified values with a NA.

coalesce() to replace missing values within subsequent vector(s) of value(s).

Examples

df <- data.frame(x = c(1, 2, NA), y = c("a", NA, "b"), stringsAsFactors = FALSE)
df %>% replace_na(list(x = 0, y = "unknown"))
#>   x       y
#> 1 1       a
#> 2 2 unknown
#> 3 0       b
df %>% mutate(x = replace_na(x, 0))
#>   x    y
#> 1 1    a
#> 2 2 <NA>
#> 3 0    b

df$x %>% replace_na(0)
#> [1] 1 2 0
df$y %>% replace_na("unknown")
#> [1] "a"       "unknown" "b"