coalesce {dplyr} | R Documentation |
Given a set of vectors, coelesce
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(x, ...)
x, ... |
Vectors. All inputs should either be length 1, or the
same length as |
A vector the same length as x
with missing values replaced
by the first non-missing value.
na_if()
to replace specified values with a NA
.
# Use a single value to replace all missing values x <- sample(c(1:5, NA, NA, NA)) coalesce(x, 0L) # 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)