public void Should_be_able_to_scale_problems() { var prob = new svm_problem() { l = 2, x = new svm_node[][] { new svm_node[] { new svm_node(){ index= 1, value=1}, new svm_node(){ index= 2, value=2} }, new svm_node[] { new svm_node(){ index= 1, value=3}, new svm_node(){ index= 2, value=4} } }, y = new double[] { 0, 0 } }; prob = prob.Scale(0, 1); Assert.IsTrue(prob.x[0].Single(x => x.index == 1).value == 0); Assert.IsTrue(prob.x[1].Single(x => x.index == 1).value == 1); Assert.IsTrue(prob.x[0].Single(x => x.index == 2).value == 0); Assert.IsTrue(prob.x[1].Single(x => x.index == 2).value == 1); }