numpy - tile()函数

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tile（a, reps）

a: 类型众多，几乎所有类型都可以：array, list, tuple, dict, matrix以及基本数据类型int, string, float以及bool类型
reps: 类型也很多，可以是tuple，list, dict, array, int, bool.但不可以是float, string, matrix类型。

>>> import numpy as np

>>> a = 1>>> reps = 3>>> np.tile(a, reps)array([1, 1, 1])

>>> a = "np">>> reps = 3>>> np.tile(a, reps)array(['np', 'np', 'np'],      dtype='|S2')

>>> a = [1,2,3]>>> reps = 3>>> np.tile(a, reps)array([1, 2, 3, 1, 2, 3, 1, 2, 3])

>>> a = [[1,2], [3,4]]>>> reps = 3>>> np.tile(a, reps)array([[1, 2, 1, 2, 1, 2],       [3, 4, 3, 4, 3, 4]])

>>> a = "np">>> reps = [2, 3]>>> np.tile(a, reps)array([['np', 'np', 'np'],       ['np', 'np', 'np']],      dtype='|S2')

>>> a = [10,20]>>> reps = [2, 3]>>> np.tile(a, reps)array([[10, 20, 10, 20, 10, 20],       [10, 20, 10, 20, 10, 20]])

>>> a = [[10,20], [30,40]]>>> reps = [2, 3]>>> np.tile(a, reps)array([[10, 20, 10, 20, 10, 20],       [30, 40, 30, 40, 30, 40],       [10, 20, 10, 20, 10, 20],       [30, 40, 30, 40, 30, 40]])

>>> a = [10,20]>>> reps = [2, 3, 4]>>> np.tile(a, reps)array([[[10, 20, 10, 20, 10, 20, 10, 20],        [10, 20, 10, 20, 10, 20, 10, 20],        [10, 20, 10, 20, 10, 20, 10, 20]],       [[10, 20, 10, 20, 10, 20, 10, 20],        [10, 20, 10, 20, 10, 20, 10, 20],        [10, 20, 10, 20, 10, 20, 10, 20]]])

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