rowTabulates: Tabulates the values in a matrix-like object by row (column)

In Bioconductor/MatrixGenerics: S4 Generic Summary Statistic Functions that Operate on Matrix-Like Objects

Tabulates the values in a matrix-like object by row (column)

Description

Tabulates the values in a matrix-like object by row (column).

Usage

rowTabulates(x, rows = NULL, cols = NULL, values = NULL, ...,
  useNames = TRUE)

## S4 method for signature 'matrix_OR_array_OR_table_OR_numeric'
rowTabulates(x, rows = NULL,
  cols = NULL, values = NULL, ..., useNames = TRUE)

## S4 method for signature 'ANY'
rowTabulates(x, rows = NULL, cols = NULL, values = NULL,
  ..., useNames = TRUE)

colTabulates(x, rows = NULL, cols = NULL, values = NULL, ...,
  useNames = TRUE)

## S4 method for signature 'matrix_OR_array_OR_table_OR_numeric'
colTabulates(x, rows = NULL,
  cols = NULL, values = NULL, ..., useNames = TRUE)

## S4 method for signature 'ANY'
colTabulates(x, rows = NULL, cols = NULL, values = NULL,
  ..., useNames = TRUE)

Arguments

x	An NxK matrix-like object.
rows, cols	A vector indicating the subset of rows (and/or columns) to operate over. If NULL, no subsetting is done.
values	the values to search for.
...	Additional arguments passed to specific methods.
useNames	If TRUE (default), names attributes of result are set. Else if FALSE, no naming support is done.

Details

The S4 methods for x of type matrix, array, table, or numeric call matrixStats::rowTabulates / matrixStats::colTabulates.

Value

a numeric NxJ (KxJ) matrix, where N (K) is the number of rows (columns) for which the J values are calculated.

See Also

• matrixStats::rowTabulates() and matrixStats::colTabulates() which are used when the input is a matrix or numeric vector.

• base::table()

Examples

  mat <- matrix(rpois(15, lambda = 3), nrow = 5, ncol = 3)
  mat[2, 1] <- NA_integer_
  mat[3, 3] <- 0L
  mat[4, 1] <- 0L

  print(mat)

  rowTabulates(mat)
  colTabulates(mat)

  rowTabulates(mat, values = 0)
  colTabulates(mat, values = 0)

Bioconductor/MatrixGenerics documentation built on April 19, 2024, 8:19 a.m.