local.derivative.ddtw: Local derivative estimate to compute DDTW

In DTWBI: Imputation of Time Series Based on Dynamic Time Warping

Local derivative estimate to compute DDTW

Description

This function estimates the local derivative of a vector. It can be used as an input in dtw() function (package dtw) to align two univariate signals.

Usage

local.derivative.ddtw(X)

Arguments

X	input vector from which local derivative has to be calculated

Examples

data(dataDTWBI)
X <- dataDTWBI[, 1]
local.derivative.ddtw(X)

# Plot
plot(X, type = "b", ylim = c(-1, 1))
lines(local.derivative.ddtw(X), col = "red")

DTWBI documentation built on Sept. 9, 2026, 9:07 a.m.