Learn R Programming

matrixStats (version 0.1.5)

rowOrderStats: Gets an order statistic for each row (column) in a matrix

Description

Gets an order statistic for each row (column) in a matrix.

Usage

rowOrderStats(x, which, ...)
 colOrderStats(x, which, ...)

Arguments

x
which
An integer index in [1,K] ([1,N]) indicating which order statistic to be returned.
...
Not used.

Value

Missing values

This method does not handle missing values, that is, the result corresponds to having na.rm=FALSE (if such an argument would be available).

Details

The implementation of rowOrderStats() is optimized for both speed and memory. To avoid coercing to doubles (and hence memory allocation), there is a unique implementation for integer matrices. Currently, colOrderStats(x) is calling rowOrderStats(t(x)).

See Also

See rowMeans() in colSums().