matrixpls method for the generic function r2 computes the squared multiple correlation (R2)
for composites predicted by other composites in the model.r2(object, ...)matrixpls function.ave,
cr, effects.matrixpls,
fitSummary, fitted.matrixpls,
gof, htmt,
loadings.matrixpls,
predict.matrixpls,
residuals.matrixpls