Generate a 2D boolean array from tuples

Question

How can I generate a 2D boolean array using a list of tuples that shows the indices of the True values?

For example I have the following list of tuples:

Answer 1

Here's an approach using NumPy's linear indexing that works for tuples of any lengths intended to generate multi-dimensional arrays -

# Convert list of indices to a 2D array version
idx = np.array(lst)

# Decide on the shape of output array based on the extents, then initialize
shp = idx.max(0)+1
out = np.zeros(shp,dtype=bool)

# Using np.put insert 1s in out at places specified by linear indices version
np.put(out,np.ravel_multi_index(idx.T,shp),1)

Sample input, output -

In [54]: lst
Out[54]: [(0, 1, 3), (0, 2, 2), (1, 0, 0), (1, 3, 1), (2, 1, 3)]

In [55]: out
Out[55]: 
array([[[False, False, False, False],
        [False, False, False,  True],
        [False, False,  True, False],
        [False, False, False, False]],

       [[ True, False, False, False],
        [False, False, False, False],
        [False, False, False, False],
        [False,  True, False, False]],

       [[False, False, False, False],
        [False, False, False,  True],
        [False, False, False, False],
        [False, False, False, False]]], dtype=bool)