http://rpubs.com/deleeuw/83572. The paper uses monotone B-splines and majorization in an R function that implements nonlinear generalizations of PCA, multiple regression, image analysis, SEM. And much more. This extends methods in the CRAN package `aspect`. The theory has been around for 30 years but the technical improvements using R, RStudio, knitr are impressive, if I say so myself. The markdown file which contains all R and C code is at http://gifi.stat.ucla.edu/aspect.Rmd
=== Jan de Leeuw, Professor Emeritus, UCLA Statistics 8 N Stafford Street, Portland, OR 97217 — 971-254-9331 email: dele...@stat.ucla.edu — homepage: http://gifi.stat.ucla.edu ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
