Given a set of vectors, `coalesce()`

finds the first non-missing value at each position. This is inspired by the SQL
`COALESCE`

function which does the same thing for `NULL`

s.

coalesce(...)

... | Vectors. Inputs should be recyclable (either be length |
---|

Currently, `coalesce()`

type checking does not take place.

`na_if()`

to replace specified values to a `NA`

.

`replace_na()`

to replace a `NA`

with a value.

#> [1] 4 0 3 0 1 5 0 2# Or match together a complete vector from missing pieces y <- c(1, 2, NA, NA, 5) z <- c(NA, NA, 3, 4, 5) coalesce(y, z)#> [1] 1 2 3 4 5