def reset(self):
        self.batch_index = 0
Create the mpl widget and update the underlying control.
dataset/ETHPy150Open NervanaSystems/neon/neon/data/questionanswer.py/QA.reset--crossover with--dataset/ETHPy150Open nucleic/enaml/enaml/qt/qt_mpl_canvas.py/QtMPLCanvas._refresh_mpl_widget