myTAI (version 2.3.4)

genes_top_mean: Select Top Mean Expressed Genes

Description

Select genes with the highest mean expression across samples.

Usage

genes_top_mean(phyex_set, top_p = 0.99, top_k = NULL)

Value

Character vector of gene IDs with mean expression >= top_p quantile or top top_k genes

Arguments

phyex_set

A PhyloExpressionSet object

top_p

Quantile threshold for gene selection (default: 0.99). Ignored if top_k is specified.

top_k

Absolute number of top genes to select (default: NULL). Takes precedence over top_p.

Details

This function identifies genes with the highest mean expression levels, which are often the most reliably detected and functionally important.

Examples

# Select top 1% most expressed genes by mean
high_expr_genes <- genes_top_mean(example_phyex_set, top_p = 0.99)

# Select top 1000 most expressed genes
top_1000_genes <- genes_top_mean(example_phyex_set, top_k = 1000)