python - 在 python 中为 theano LSTM 绘图

Question

我正在尝试在下面的 LSTM python 代码中进行绘图，但没有发生任何事情，我该怎么做才能修复它？（它只是最后的代码，lstm 代码可在deeplearning.com上获得）

       print 'Train ', train_err, 'Valid ', valid_err, 'Test ', test_err
    if saveto:
       numpy.savez(saveto, train_err=train_err,
                valid_err=valid_err, test_err=test_err,
                history_errs=history_errs, **best_p)

       print 'The code run for %d epochs, with %f sec/epochs' % (
       (eidx + 1), (end_time - start_time) / (1. * (eidx + 1)))
       print >> sys.stderr, ('Training took %.1fs' %
                      (end_time - start_time))

       plt.plot(numpy.array(max_epochs), numpy.array(test_err), 'b-')
       plt.xlabel('epochs')
       plt.ylabel('error')
       return train_err, valid_err, test_err


if __name__ == '__main__':
   # See function train for all possible parameter and there definition.
   train_lstm(
   max_epochs=10,
    test_size=500,
)