Call an Arrow compute function
This function provides a lower-level API for calling Arrow functions by their
string function name. You won't use it directly for most applications.
Many Arrow compute functions are mapped to R methods,
and in a dplyr
evaluation context, all Arrow functions
are callable with an arrow_
prefix.
call_function( function_name, ..., args = list(...), options = empty_named_list() )
function_name |
string Arrow compute function name |
... |
Function arguments, which may include |
args |
list arguments as an alternative to specifying in |
options |
named list of C++ function options. |
An Array
, ChunkedArray
, Scalar
, RecordBatch
, or Table
, whatever the compute function results in.
Arrow C++ documentation for the functions and their respective options.
a <- Array$create(c(1L, 2L, 3L, NA, 5L)) s <- Scalar$create(4L) call_function("fill_null", a, s) a <- Array$create(rnorm(10000)) call_function("quantile", a, options = list(q = seq(0, 1, 0.25)))
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