Several simple ways to merge and column merge multiple arrays in Python __python

Use NumPy to quickly merge two matrices or arrays into an array:

Import NumPy as NP

Array

A = [[1,2,3],[4,5,6]]

b = [[1,1,1],[2,2,2]]

1. Array vertical Merging

1)

c = Np.vstack ((a,b))

c =

Array ([[1, 2, 3],
[4, 5, 6],
[1, 1, 1],
[2, 2, 2]]

2)

c = Np.r_[a,b]

c = Array ([[1, 2, 3],
[4, 5, 6],
[1, 1, 1],
[2, 2, 2]])


2. Array horizontal Merging

1),

D = Np.hstack ((a,b))

d = Array ([[1, 2, 3, 1, 1, 1],
[4, 5, 6, 2, 2, 2]]

2),

D = np.c_[a,b]

d = Array ([[1, 2, 3, 1, 1, 1],
[4, 5, 6, 2, 2, 2]]