def _random_pairing()

in submix.py [0:0]

• 10 lines of code
• 2 McCabe index (conditional complexity)

    def _random_pairing(self, k):
        randperm = torch.randperm(k) + 1 #add one to get (1,k) range
        pairing = []
        i = 0
        while i < len(randperm)-1:
            idx1 = randperm[i]
            idx2 = randperm[i+1]
            pairing.append( (idx1,idx2) )
            i += 2
        return pairing