read_files {tfdatasets}

Read a dataset from a set of files

Description

Read files into a dataset, optionally processing them in parallel.

Usage

read_files(
  files,
  reader,
  ...,
  parallel_files = 1,
  parallel_interleave = 1,
  num_shards = NULL,
  shard_index = NULL
)

Arguments

files

List of filenames or glob pattern for files (e.g. "*.csv")

reader

Function that maps a file into a dataset (e.g. text_line_dataset() or tfrecord_dataset()).

...

Additional arguments to pass to reader function

parallel_files

An integer, number of files to process in parallel

parallel_interleave

An integer, number of consecutive records to produce from each file before cycling to another file.

num_shards

An integer representing the number of shards operating in parallel.

shard_index

An integer, representing the worker index. Shared indexes are 0 based so for e.g. 8 shards valid indexes would be 0-7.

Value

A dataset