2 packages on CRAN
1 packages on Bioconductor
Fractional polynomials are used to represent curvature in regression models. A key reference is Royston and Altman, 1994.
Support Vector Machine (SVM) classification with simultaneous feature selection using penalty functions is implemented. The smoothly clipped absolute deviation (SCAD), 'L1-norm', 'Elastic Net' ('L1-norm' and 'L2-norm') and 'Elastic SCAD' (SCAD and 'L2-norm') penalties are available. The tuning parameters can be found using either a fixed grid or a interval search.
This package includes a function for combining preprocessing and classification methods to calculate misclassification errors