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This study calculates and displays the Incremental Change of the data specified by the Input Data Input over a period specified by the Length Input.

Let \(X\) be a random variable denoting the Input Data, and let \(X_t\) be the value of the Input Data at Index \(t\). Let the Input Length be denoted as \(n\). Then we denote the Rate of Change - Points at Index \(t\) for the given Inputs as \(\Delta X_t(n)\), and we compute it for \(t \geq n\) as follows.