Focusingonhigh-dimensionalapplications,this4theditionpresentsthetoolsandconceptsusedinmultivariatedataanalysisinastylethatisalsoaccessiblefornon-mathematiciansandpractitioners.Itsurveysthebasicprinciplesandemphasizesbothexploratoryandinferentialstatistics;anewchapteronVariableSelection(