table_read_csv — FILEIO `table` op

• Data kinds: text → table

• Call: import fullseye as fs; fs.ledger.table_read_csv(text) (to call the implementation directly, import fileio; fileio.table_read_csv(text); from the registry, opsfileio.get("table_read_csv"))

• GPU: none (CPU reference implementation only)

Usage

Reads the unit-aware CSV produced by table_write_csv and returns a table containing columns, units, and metadata.

> The detailed description below is the original text — the summary and the headings are translated.

返り値は {"columns": {列名: 1-D 配列}, "units": {...}, "meta": {...}}。列名と単位の個数、全データ行の列数、必須メタデータを検査し、途中までの表は返さない。数値列は float64 (空欄は NaN)、数値以外を含む列は文字列配列になる。ただし全セルが整数で、float64 では正確に持てない値(絶対値が 2**53 超)を含む列は int64 / uint64 で返す(丸めて返さない)。その列に空欄(欠測)があれば、空欄を mask した int64 / uint64 の numpy.ma.MaskedArray で返す。入力は UTF-8 の str または bytes(先頭の BOM は読み飛ばす)。

呼び出し例: roundtrip = table_read_csv(table_write_csv(table, units=units, meta=meta))。

References (sample data, literature)

• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).

• Operator provenance and references — the sources of the research/methods this op family came from.

• The canonical algorithm (author, year) and its uses are named in the family usage guide above.

Runnable examples (verified samples that actually call this op)

• fileio_roundtrip — py -3.11 examples/fileio_roundtrip.py

• type_connectivity_tour — py -3.11 examples/type_connectivity_tour.py

Ops the type connects to (they accept `table` as input)

table_write_csv · mesh_write_ply · mesh_read_ply · mesh_read_stl · e57_write · e57_read · archive_probe · archive_list

Same category (`table`)

table_write_csv

*Provenance: fileio.py — FILEIO operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

table_read_csv — FILEIO table op