R: Gets the range of values in each row (column) of a matrix

rowRanges {matrixStats}

R Documentation

Gets the range of values in each row (column) of a matrix

Description

Gets the range of values in each row (column) of a matrix.

Usage

rowRanges(x, rows = NULL, cols = NULL, na.rm = FALSE, dim. = dim(x),
  ...)

rowMins(x, rows = NULL, cols = NULL, na.rm = FALSE, dim. = dim(x), ...)

rowMaxs(x, rows = NULL, cols = NULL, na.rm = FALSE, dim. = dim(x), ...)

colRanges(x, rows = NULL, cols = NULL, na.rm = FALSE, dim. = dim(x),
  ...)

colMins(x, rows = NULL, cols = NULL, na.rm = FALSE, dim. = dim(x), ...)

colMaxs(x, rows = NULL, cols = NULL, na.rm = FALSE, dim. = dim(x), ...)

Arguments

`x`	A `numeric` NxK `matrix`.
`rows, cols`	A `vector` indicating subset of rows (and/or columns) to operate over. If `NULL`, no subsetting is done.
`na.rm`	If `TRUE`, `NA`s are excluded first, otherwise not.
`dim.`	An `integer` `vector` of length two specifying the dimension of `x`, also when not a `matrix`.
`...`	Not used.

Value

rowRanges() (colRanges()) returns a numeric Nx2 (Kx2) matrix, where N (K) is the number of rows (columns) for which the ranges are calculated.

rowMins()/rowMaxs() (colMins()/colMaxs()) returns a numeric vector of length N (K).

Author(s)