marginTree              A function to train a margin tree classifier
marginTree.confusion    A function giving a table of true versus
                        predicted values, from a margin tree.
marginTree.cv           Cross-validation of the margin tree classifier
marginTree.getnonzero   Get important features at each split of the
                        margin tree
marginTree.plclust      Plot a margin tree
marginTree.plotcv       A function to plot the cross-validated error
                        curves from classifier a margin tree classifier
marginTree.predict      Prediction from the margin tree classifier
