【Python】配列要素のrepeatとtileをNumpyで拡張

配列要素をrepeatとtileで拡張します.たとえば、
In [32]: a=np.arange(10)
In [33]: a
Out[33]: array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])
In [34]: a.repeat(5)
Out[34]:
array([0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4,
4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 9,
9, 9, 9, 9])
In [40]: np.tile(a,2)
Out[40]: array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]) 
公式の例では

>>> from numpy import *
>>> a=array([10,20])
>>> tile(a,(3,2)) #  3X2 copy
array([[10, 20, 10, 20],
       [10, 20, 10, 20],
       [10, 20, 10, 20]])
>>> tile(42.0,(3,2))
array([[ 42.,  42.],
       [ 42.,  42.],
       [ 42.,  42.]])
>>> 

>>> from numpy import *
>>> repeat(7.,4)
array([ 7.,  7.,  7.,  7.])
>>> a=array([10,20])
>>> a.repeat([3,2])
array([10, 10, 10, 20, 20])
>>> repeat(a,[3,2])
array([10, 10, 10, 20, 20])
>>> a=array([[10,20],[30,40]])
>>> a.repeat([3,2],axis=0)
array([[10, 20],
       [10, 20],
       [10, 20],
       [30, 40],
       [30, 40]])
>>> a.repeat([3,2],axis=1)
array([[10, 10, 10, 20, 20],
       [30, 30, 30, 40, 40]])
>>>