Python Tile function usage

The tile function is in the Python module numpy.lib.shape_base, and his function is to repeat an array. For example, Tile (a,n), the function is to repeat the array a n times to form a new array, we still use specific examples to illustrate the problem:

Let's start by introducing all the methods under NumPy:

>>> from numpy Import *

We create a, use tiles to create B, and look at the data structure of B:

>>> a=[0,1,2]
>>> B=tile (a,2)
>>> b
Array ([0, 1, 2, 0, 1, 2])

If we enter a tuple, we will get the same result, with the same b

>>> B=tile (A, ())
>>> b
Array ([[0, 1, 2, 0, 1, 2]])

Of course, we want a to become a two-dimensional array, it is necessary to change the way of repetition.

>>> B=tile (A, (2,1))
>>> b
Array ([[0, 1, 2],
[0, 1, 2]])

Python Tile function usage