numpy - ravel_multi_index
arr = np.array([[3,6,6],[4,5,1]]) np.ravel_multi_index(arr, (7,6)) ## array([22, 41, 37]) r = 7 c = 6 print(np.arange(r*c)) print(np.arange(r*c).reshape(r,c)) print(np.arange(r*c).reshape(r,c)[[3,6,6],[4,5,1]]) ## [ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41] ## [[ 0 1 2 3 4 5] ## [ 6 7 8 9 10 11] ## [12 13 14 15 16 17] ## ..
2021. 12. 21.