Examples include Salford Systems CART ( which licensed the proprietary code of the original CART authors ) , IBM SPSS Modeler , RapidMiner , SAS Enterprise Miner , Matlab , R ( an open-source software environment for statistical computing , which includes several CART implementations such as rpart , party and randomForest packages ) , Weka ( a free and open-source data-mining suite , contains many decision tree algorithms ) , Orange , KNIME , Microsoft SQL Server programming language ) .