[FIXED] Finding the locations of specific coordinates from an array of coordinates

Issue

I have an array of coordinates as shown below:

import numpy as np
values_to_test = np.array([[1 , 0],[2 , 0],[2 , 0.5],[1 , 0.5],[0 , 0],[2 , 1], [0 , 0.5],[1 , 1],[0 , 1]])

As my ultimate goal, I need to choose the positions from the values_to_test that contain the specific coordinates of the following array:

specific_values=np.array([[1,0],[0,0],[1,1]])

Hence, I'm expecting a result like: [True,False,False,False,True,False,False,True,False]

I know if this was a 1D array I could use np.where but I cannot think about a way to handle this problem.
Appreciate your help

Solution

You could make use of numpy.all and numpy.any like so:

>>> (values_to_test[:, None] == specific_values).all(axis=-1).any(axis=-1)
array([ True, False, False, False,  True, False, False,  True, False])

Answered By - game0ver