Multivariate Analysis: Definition, Criteria and Classification

Abstract

This article, as an introduction to this monographic volume, offers an overview of the methods and multivariate techniques. It is not eay due to the multiplicity and diversity of classification criteria that can be adopted. Therefore, we insist on giving to multivariate methods an identity which goes further than a simplistic definition as the latter would identify them only by the number of variables. Other criteria are introduced into the definition as well as into classification, such as the nature of the variables in the explanatory process, its metrical, number, etc.