record_batch {arrow} | R Documentation |
Create a RecordBatch
Description
Create a RecordBatch
Usage
record_batch(..., schema = NULL)
Arguments
... |
A data.frame or a named set of Arrays or vectors. If given a
mixture of data.frames and vectors, the inputs will be autospliced together
(see examples). Alternatively, you can provide a single Arrow IPC
InputStream , Message , Buffer , or R raw object containing a Buffer .
|
schema |
a Schema, or NULL (the default) to infer the schema from
the data in ... . When providing an Arrow IPC buffer, schema is required.
|
Examples
batch <- record_batch(name = rownames(mtcars), mtcars)
dim(batch)
dim(head(batch))
names(batch)
batch$mpg
batch[["cyl"]]
as.data.frame(batch[4:8, c("gear", "hp", "wt")])
[Package
arrow version 13.0.0.1
Index]