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VennDataset: in-memory representation of a Venn-diagram input

Source: R/classes.R
VennDataset-class.Rd

Returned by the `load_*()` family and consumed by [analyze()]. Holds the deduplicated set members, first-seen item ordering for byte-equivalent TSV output, and source metadata (path, format, optional hypergeometric universe size).

Slots

set_names

Ordered character vector of set identifiers (length 2-9).

items

Named list (`names(items) == set_names`) of character vectors, each containing the deduplicated members of the corresponding set.

item_order

First-seen insertion order of all items across all sets, matching JS Set/Map semantics. Used by TSV writers (Phase 2) for byte-equivalent output to the web tool.

universe_size

Hypergeometric universe N (population size) from the source file, when known. Binary CSV/TSV loaders set this to the row count (matching the web tool's `csv.rows.length`); other formats leave it `NULL`, signaling "compute as length(item_order)" downstream.

source_path

Original file path if loaded from disk; `NULL` for in-memory datasets.

format

Source format: one of `"csv"`, `"tsv"`, `"gmt"`, `"gmx"`.