SELECTING MATRIX ELEMENTS IN DESCENDING ORDER

I WANT A PROGRAMME WHERE NUMBERS ARE SELECTED IN DESCENDING ORDER WITH THEIR INDICES (i,j) .

DO NOT ARRANGE THE MATRIX OR CHANGE ANYTHING IN MATRIX.

I JUST WANT SELECTION OF ELEMENTS IN DESCENDING ORDER.

THANKS.

A=[57 60 62 64 69 67 68 63 36 33;

52 45 25 37 49 55 58 49 39 34;

53 45 25 37 48 56 58 50 39 39;

56 48 41 76 159 164 153 158 171 130;

52 47 41 78 123 166 154 154 179 133;

39 43 41 41 45 64 95 93 74 73;

45 43 39 50 52 63 103 86 73 80;

45 35 13 17 30 36 62 54 34 30;

43 34 13 20 31 35 62 51 34 31;

18 19 15 39 85 97 115 78 24 23]

[Jan]

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Thanks.

Answer 1

[Mathieu NOE]

hello

try this

r = row index

c = col index

[value,ind] = sort(A(:),1,'descend');
[r,c] = ind2sub(size(A),ind)

[Mathieu NOE]

hello

problem solved?

Answer 2

[Jan]

This can be obtained by the 2nd output of the sort() command.

A=[57	60	62	64	69	67	68	63	36	33;
  52	45	25	37	49	55	58	49	39	34;
  53	45	25	37	48	56	58	50	39	39;
  56	48	41	76	159	164	153	158	171	130;
  52	47	41	78	123	166	154	154	179	133;
  39	43	41	41	45	64	95	93	74	73;
  45	43	39	50	52	63	103	86	73	80;
  45	35	13	17	30	36	62	54	34	30;
  43	34	13	20	31	35	62	51	34	31;
  18	19	15	39	85	97	115	78	24	23];

[~, index] = sort(A(:), 'descend');  % [EDITED] 'descend' as 2nd input
[row,col]  = ind2sub(size(A), index)