get.unique.matrix: Get unique rows/columns of a matrix with an index vector.

In caitiecollins/treeWAS: Phylogenetic tree-based microbial GWAS

Get unique rows/columns of a matrix with an index vector.

Description

A wrapper for the table.matrix function that assigns consecutive row or column names to the output matrix's unique rows or columns.

Usage

get.unique.matrix(data, MARGIN = 2, silent = TRUE)

Arguments

data	A matrix or data.frame, potentially containing non-unique patterns in its rows or columns.
MARGIN	A single integer specifying the array margin to be held fixed. (To get unique rows, select MARGIN = 1; for unique columns, select MARGIN = 2.)

Details

An extension of the base unique.matrix function, get.unique.matrix returns a unique matrix (by removing duplicate rows or columns), as well as an index vector that maps each row/column in the original matrix to the corresponding unique row or column in the deduplicated unique matrix.

Value

A list with the following elements:

• index

  An index vector containing the indices (row numbers), in a matrix composed only of unique rows, to which each row in the original matrix maps.

• unique.data

  A new matrix containing only the unique rows of the input matrix.

Author(s)

Caitlin Collins [e-mail]

caitiecollins/treeWAS documentation built on Feb. 11, 2025, 11:25 a.m.