loggers.py 文件源码

def _init_pane(self):
        nan = np.array([np.NAN, np.NAN])
        X = np.column_stack([nan] * len(self.legend))
        Y = np.column_stack([nan] * len(self.legend))
        return self.viz.line(
            X=X, Y=Y, env=self.env, opts=self.opts)