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dcce (version 0.4.2)

D: Difference operator for dcce formulas

Description

Creates a differenced version of a variable for use inside dcce() formulas.

Usage

D(x, k = 1L)

Value

A numeric vector of the same length as x with leading NAs.

Arguments

x

A numeric vector.

k

Integer difference order. Default 1.

Examples

Run this code
x <- c(10, 20, 30, 40, 50)
D(x, 1)   # NA 10 10 10 10
D(x, 2)   # NA NA 20 20 20

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