Package index • zuarrow

Handles

Schemas, arrays and streams in the layout nanoarrow uses, built from R objects or accepted from any Arrow producer.

arrow_schema(): Arrow schemas
arrow_array() arrow_stream(): Build an Arrow array or stream from R

Back to R

Exact conversion to R vectors and data frames, or an error.

arrow_to_r() arrow_next() as.data.frame(<zuarrow_array_stream>) as.data.frame(<zuarrow_array>) as.vector(<zuarrow_array>): Convert Arrow data to R
arrow_matrix(): Matrices as fixed-size lists

The IPC formats

The Arrow file and stream formats, plain or compressed.

arrow_read(): Read the Arrow IPC formats
arrow_write(): Write the Arrow IPC formats
arrow_limits(): Limits on IPC input

Validation, comparison and metadata

arrow_validate(): Validate a handle
arrow_equal(): Compare two schemas, arrays or streams
arrow_metadata() `arrow_metadata<-`(): Schema metadata

The registry

Which R class is the exact form of which Arrow type.

arrow_register() arrow_unregister() arrow_registry(): Register an exact R type for an Arrow type
arrow_types(): The built-in type table
zuarrow_info(): Package information