numpy.row_stack

官文链接：https://numpy.org/doc/stable/reference/generated/numpy.row_stack.html#numpy.row_stack

numpy.row_stack(tup)
堆数组到垂直序列。
简单实例：

import numpy as np
import matplotlib.pyplot as plt
a = np.ndarray((5))
print(np.vstack(a))
print(np.row_stack(a))
print(np.row_stack(a))
plt.scatter(np.row_stack(a),np.row_stack(a))
plt.show()