Finding the first value in a matrix

Hello,

In my matrix c, how do I find the first time the value 700 appears searching one row at a time before moving onto the next?

Thank you.

Answer 1

[Jan]

c = [0, 0, 700; 1, 2, 3; 4, 700, 1];
d = c.';
[col, row] = find(d == 700, 1)

i2 = 3

i1 = 1

Here the column index is replied at first, because the input was transposed.

Answer 2

[Star Strider]

I am not certain what you want.

Try this —

c = randi([650 750], 25);
[cr,cc] = find(c==700)

cr = 12×1

18 3 13 3 19 22 24 6 12 19

cc = 12×1

2 4 7 9 12 14 17 19 21 21

[RowMin,Idx] = min(cr)

RowMin = 3

Idx = 2

First700 = [RowMin, cc(Idx)]

First700 = 1×2

3 4

.