11. Another method similar to the eigenface technique is'fisherfaces'which uses linear discriminant analysis . 12. Discriminant analysis is used when groups are known a priori ( unlike in cluster analysis ).13. A combined cluster and discriminant analysis approach revealed three clusters of dyslexics with different cognitive deficits. 14. Optimal discriminant analysis may be thought of as a generalization of Fisher's linear discriminant analysis. 15. Optimal discriminant analysis may be thought of as a generalization of Fisher's linear discriminant analysis . 16. If the assumptions of linear discriminant analysis hold, the conditioning can be reversed to produce logistic regression. 17. Examples are principal component analysis and discriminant analysis , and the quartimax and oblimax methods in factor analysis. 18. The raw accuracy of discriminant analysis the sum of correct predictions divided by the total number of cases. 19. In some cases, the solution can be computed in closed form as in naive Bayes and linear discriminant analysis . 20. It is easier to interpret than multiple linear regression ( known as linear discriminant analysis in the classification case ).