is_specified_output_of statistic Roy’s Maximum Root Alejandra Gonzalez-Beltran Oxford Dictionary of Statistical Terms Philippe Rocca-Serra Roy's maximum root is a statistic used in multivariate analysis of variance to find the maximum characteristic root or eigenvalue statistic for testing equality of k p-variate normal distributions with same covariance matrix, independence between two sets of variables jointly distributed as a normal distribution, equality of covariance matrices of two p-variate normal distributions, whether the covariance matrix of a p-variabte normal distribution with unknown mean vector equals a specified matrix. https://onlinecourses.science.psu.edu/stat505/node/163 multivariate analysis of variance ready for release