• Allow the other criterion for model selection: AUC for (multinomial) logistic regression such as the area under the curve (AUC).
• Simplify the C++ code structure.
• Fix note “Specified C++11: please update to current default of C++17” in CRAN.
• Adapt to the API change of the Matrix package.
• Change the package structure such that the API functions can reuse the utility function. It facilitates the testing for package.
• Update citation information.
• Support generalized linear model for ordinal response, also named as rank learning in machine learning community.
• Support robust principal analysis
• Modify R package structure to make many internal components are reusable.
• Support generalized linear model when the link function is Gamma distribution. By setting family = "gamma" in abess function, users can analyze the dataset with a positive valued and skewed response.
• Support flexible support size for sequential principal component analysis (PCA), accompanied with several helpful generic function like plot.
• Support user-specified cross validation division for abess and abesspca function by additional argument foldid.
• Support robust principal component analysis now. A new R function abessrpca can access it.
• Improve the R package document by: adding more details and giving more links related to core functions.
• Add docs2search for R’s website
• Support important searching to improve computational efficiency when dimension is 10,000.
• Support sparse matrix as input
• Support golden section search for optimal support size
• Support ridge-regularized penalty as a generic component
• Support group subset selection as a generic component
• Best subset selection for principal component analysis via abesspca
• Bug fixed
• Initial stable version abess package
• Support best subset selection for linear regression, logistic regression, poisson regression, cox proportional hazard regression, multi-gaussian regression, multi-nominal regression.
• Support nuisance selection as a generic component
• Unified API for cross validation and information criterion to select the optimal support size.
• A documentation website is support for abess package