Gifi Methods for Optimal Scaling in R: The Package homals

Journal of Statistical Software

关键词: ¯Gifi methods;    optimal scaling;    homogeneity analysis;    correspondence analysis;    nonlinear principal component analysis;    nonlinear canonical correlation analysis;    homals;    R;   

DOI  :  

来源: DOAJ

【 摘 要 】

Homogeneity analysis combines the idea of maximizing the correlations between variables of a multivariate data set with that of optimal scaling. In this article we present methodological and practical issues of the R package homals which performs homogeneity analysis and various extensions. By setting rank constraints nonlinear principal component analysis can be performed. The variables can be partitioned into sets such that homogeneity analysis is extended to nonlinear canonical correlation analysis or to predictive models which emulate discriminant analysis and regression models. For each model the scale level of the variables can be taken into account by setting level constraints. All algorithms allow for missing values.

【 授权许可】

Unknown