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Machine learning package used to build and test classifiers using AdaBoost on decision stumps.
Creates classifier for binary outcomes using Adaptive Boosting (AdaBoost) on decision stumps with a fast C++ implementation. Feature vectors may be a combination of continuous (numeric) and categorical (string, factor) elements. Methods for classifier assessment, predictions, and cross-validation also included. The advantage of this type of classifier is that it is non-linear but it is more interpretable than random forests, neural-nets, and other non-linear classifiers.
See jadonwagstaff.github.io/sboost for a description of how the classifier functions, and what makes this classifier more interpretable than others.
For original paper describing AdaBoost see:
Freund, Y., Schapire, R.E.: A decision-theoretic generalization of on-line learning and an application to boosting. Journal of Computer and System Sciences 55(1), 119-139 (1997)
Install this package from the CRAN repository.
install.packages("sboost")Alternatively, use devtools to install the development version of this package.
To install devtools on R run:
install.packages("devtools")After devtools is installed, to install the sboost package on R run:
devtools::install_github("jadonwagstaff/sboost")sboost - Main machine learning algorithm, uses categorical
or continuous features to build a classifier that predicts a binary
outcome. Run ?sboost::sboost to see documentation in R.
validate - Uses k-fold cross validation on a training set to validate the classifier.
assess - Shows performance of a classifier on a set of feature vectors and outcomes.
predict - Outputs predictions of a classifier on a set of feature vectors.
Jadon Wagstaff
MIT
These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.