nanoarrow (version 0.7.0-3)

nanoarrow_buffer_init: Create and modify nanoarrow buffers

Description

Create and modify nanoarrow buffers

Usage

nanoarrow_buffer_init()
nanoarrow_buffer_append(buffer, new_buffer)
convert_buffer(buffer, to = NULL)

Value

• nanoarrow_buffer_init(): An object of class 'nanoarrow_buffer'

• nanoarrow_buffer_append(): Returns buffer, invisibly. Note that buffer is modified in place by reference.

Arguments

buffer, new_buffer

nanoarrow_buffers.

to

A target prototype object describing the type to which array should be converted, or NULL to use the default conversion as returned by infer_nanoarrow_ptype(). Alternatively, a function can be passed to perform an alternative calculation of the default ptype as a function of array and the default inference of the prototype.

Examples

buffer <- nanoarrow_buffer_init()
nanoarrow_buffer_append(buffer, 1:5)

array <- nanoarrow_array_modify(
  nanoarrow_array_init(na_int32()),
  list(length = 5, buffers = list(NULL, buffer))
)
as.vector(array)