NEWS.md

In ahoshiyar/ordPens: Selection, Fusion, Smoothing and Principal Components Analysis for Ordinal Variables

ordPens 1.1.0

Minor revision with added functionality.

• Functions ordSelect, ordFusion updated/extended to cumulative logit model models.
• Function ordCV added, provides cross-validation for penalized regression models with ordinal predictors.
• Function StabilityCumu added, provides stability selection for penalized cumulative logit models.

ordPens 1.0.0

Major revision with added functionality.

• Function ordPCA added for nonlinear principal components analysis for ordinal variables. Also, performance evaluation and selection of an optimal penalty parameter provided.
• Function ordFusion added for fusion and selection of dummy coefficients of ordinal predictors. Similar syntax as for ordSmooth() and ordSelect(); generic functions plot and predict work in the same manner.
• In addition, auxiliary functions included such that mgcv::gam() can be used for fitting generalized linear and additive models with first- and second-order ordinal smoothing penalty as well as built-in smoothing parameter selection. A new type of spline basis for ordered factors s(..., bs = "ordinal")is provided, such that smooth terms in the GAM formula can be used as an alternative and extension to ordSmooth(). Additionally, generic functions for prediction and plotting are provided. Also, mgcv tools for further statistical inference can be used.

Two additional vignettes called ordPens and ordPCA are supplied to give an overview and describe the usage of the package.

Bug fixes

• For plot.ordPen(), arguments whichlam and whichx are changed to whl and whx, respectively.

ordPens 0.3-1

Minor revision with added functionality.

• Function ordGene added, which provides testing for differentially expressed genes.

• Changed documentation of function ordAOV: argument null.sample added, containing values already simulated from the null distribution.

Fixed some minor bugs / cleaned up code.

ordPens 0.2-1

• The package starts from version 0.2-1

ahoshiyar/ordPens documentation built on May 7, 2024, 5:43 a.m.