Append immutable source shards — append_source_shards • fmridataset

Append immutable source shards

Usage

append_source_shards(x, sources, shard_ids = NULL, shard_data = NULL)

Arguments

x: An existing row_sharded_source.
sources: New compatible child sources.
shard_ids: Stable IDs for the new shards.
shard_data: Optional metadata for the new shards. Its columns must match existing shard metadata.

Value

A new row_sharded_source; x and its child descriptors are not modified.

Examples

src <- row_sharded_source(list(memory_source(matrix(1:4, nrow = 2))))
grown <- append_source_shards(src, list(memory_source(matrix(5:8, nrow = 2))))
source_shape(grown)
#> [1] 4 2