calculate_abundance_stats: Helper function to calculate abundance statistics for...

In ggpicrust2: Make 'PICRUSt2' Output Analysis and Visualization Easier

Helper function to calculate abundance statistics for differential analysis

Description

This function calculates mean relative abundance, standard deviation, and log2 fold change for each feature between two groups.

Usage

calculate_abundance_stats(abundance, metadata, group, features, group1, group2)

Arguments

abundance	A matrix or data frame with features as rows and samples as columns
metadata	A data frame containing sample information
group	Character string specifying the group column name in metadata
features	Character vector of feature names to calculate statistics for
group1	Character string specifying the first group name
group2	Character string specifying the second group name

Value

A data frame with columns:

feature	Feature identifier
mean_rel_abundance_group1	Mean relative abundance for group1
sd_rel_abundance_group1	Standard deviation of relative abundance for group1
mean_rel_abundance_group2	Mean relative abundance for group2
sd_rel_abundance_group2	Standard deviation of relative abundance for group2
log2_fold_change	Log2 fold change (group2/group1)

ggpicrust2 documentation built on April 10, 2026, 5:06 p.m.