Change the type of an array or column — cast • Arrow R Package

This is a wrapper around the $cast() method that many Arrow objects have. It is more convenient to call inside dplyr pipelines than the method.

cast(x, to, safe = TRUE, ...)

Arguments

x: an Array, Table, Expression, or similar Arrow data object.
to: DataType to cast to; for Table and RecordBatch, it should be a Schema.
safe: logical: only allow the type conversion if no data is lost (truncation, overflow, etc.). Default is TRUE.
...: specific CastOptions to set

Value

See also

data-type for a list of DataType to be used with to.

Arrow C++ CastOptions documentation # nolint for the list of supported CastOptions.

Examples

if (FALSE) {
mtcars %>%
  arrow_table() %>%
  mutate(cyl = cast(cyl, string()))
}