public static DecisionTree getStumpFor(DataSet ds, string attributeName, string attributeValue, string returnValueIfMatched, ICollection <string> unmatchedValues, string returnValueIfUnmatched) { DecisionTree dt = new DecisionTree(attributeName); dt.addLeaf(attributeValue, returnValueIfMatched); foreach (string unmatchedValue in unmatchedValues) { dt.addLeaf(unmatchedValue, returnValueIfUnmatched); } return(dt); }