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easybio (version 1.1.0)

groupStatI: Perform Summary Analysis by Group Using an Index

Description

This function applies a specified function to each group defined by an index, and returns a summary of the results. It is useful for summarizing data by group when the groups are defined by an index rather than a named column.

Usage

groupStatI(f, x, idx)

Value

A data frame or matrix containing the summary statistics for each group.

Arguments

f

A function that takes a single argument and returns a summary of the data.

x

A data frame or matrix containing the data to be summarized.

idx

A vector of indices or group names that define the groups.