Geography

Vector Variable Versus Vector Variable

Robert Gilmore Pontius, Clark University

Abstract

This chapter shows how to compute components of deviation when X and Y are vectors meaning each observation has magnitude and direction. This chapter shows how to compute Mean Deviation and Mean Absolute Deviation for magnitude and direction. Vector addition helps to compute the mean X and the mean Y. An example illustrates the concepts. Relevant software includes Vector Difference Analysis in Google Earth Engine via https://taoshiqi.users.earthengine.app/view/wind-vector-comparison (Tao and Bajracharya 2020) and VectorDeviation in R available at https://github.com/skievanc/VectorDeviation (Collins, 2020).