one dimensional array to two dimensional array python code example

Example 1: two dimensional array python

# Creates a list containing 5 lists, each of 8 items, all set to 0
w, h = 8, 5;
Matrix = [[0 for y in range(h)] for x in range(w)] 

Matrix[0][0] = 1
Matrix[0][6] = 3 # error! range... 
Matrix[6][0] = 3 # valid

Example 2: how to convert one dimensional array into two dimensional array

x = x.reshape(-1, 1)

# remember to check shape of your variable using x.shape, if it shows
# (y, n) then it is already 2D, if it shows (y,) instead, it is 1D.