GMCM (version 1.4.1)

colSds: Row and column standard deviations

Description

The rowSds and colSds respectively computes the standard deviations of each rows and columns of the given matrix.

Usage

colSds(x)
rowSds(x)

Value

colSds returns a numeric vector of length m.

rowSds returns a numeric vector of length n.

Arguments

x

A numeric matrix of size n times m

Author

Anders Ellern Bilgrau <[e-mail]>

See Also

rowMeans, colMeans

Examples

x <- matrix(rnorm(50), 10, 5)
colSds(x)
apply(x, 2, sd)  # slower equivalent code
y <- matrix(rnorm(50), 10, 5)
rowSds(y)