conformalForecast (version 0.1.0)

lagmatrix: Create lags or leads of a matrix

Description

Find a shifted version of a matrix, adjusting the time base backward (lagged) or forward (leading) by a specified number of observations for each column.

Usage

lagmatrix(x, lag)

Value

A matrix with the same class and size as x.

Arguments

x

A matrix or multivariate time series.

lag

A vector of lags (positive values) or leads (negative values) with a length equal to the number of columns of x.

Examples

x <- matrix(rnorm(20), nrow = 5, ncol = 4)

# Create lags of a matrix
lagmatrix(x, c(0, 1, 2, 3))

# Create leads of a matrix
lagmatrix(x, c(0, -1, -2, -3))