join to arrays python code example

Example 1: how to combine two arrays in python

# concatenate 2 numpy arrays: row-wise
>np.concatenate((array2D_1, array2D_2))
 
array([[ 0,  1,  2],
       [ 3,  4,  5],
       [ 6,  7,  8],
       [10, 11, 12],
       [13, 14, 15],
       [16, 17, 18]])

Example 2: python array join

my_list = ['a','b','c']  
separator = ","
separator = separator.join(my_list) 
print(separator)        # a,b,c