About idx2multi

[SmallHedgehog]

SO-Net/util/som.py

Line 80 in 8afd487

 return (i // self.cols, i % self.cols) 

It should be (i // self.rows, i % self.cols)

[Li Jiaxin]

I think it is (i // self.cols, i % self.cols). The function idx2multi converts an idx into (i, j) coordinate. Take an example that a grid is 3x5, idx 0 is (0, 0), idx 4 is (0, 4), idx 5 is (1, 0). It is row-major.

On the other hand, if it is column major, it is (i // self.rows, i % self.rows).