toy_seurat: Toy Seurat object for examples and tests

In presto: Fast Functions for Differential Expression Using Wilcoxon and AUC

Toy Seurat object for examples and tests

Description

Builds a small deterministic Seurat object (20 genes x 300 cells, two cell types in the cell_type metadata column) with the installed Seurat version, so no serialized object needs to ship with the package or be updated when Seurat changes its internal class structure. Counts are Poisson-simulated with a few upregulated marker genes per cell type, and log-normalized into the data layer. The generator restores the caller's random-number state, so calling it does not perturb reproducibility.

Usage

toy_seurat()

Details

Requires the suggested package Seurat.

Value

A Seurat object with counts and data layers and a cell_type metadata column with values "jurkat" and "t293".

See Also

toy_sce(), wilcoxauc()

Examples

if (requireNamespace("Seurat", quietly = TRUE)) {
    object_seurat <- toy_seurat()
    head(wilcoxauc(object_seurat, "cell_type"))
}

presto documentation built on Sept. 30, 2026, 5:13 p.m.