Extract specific values and row coloumn information in matrix

i have a matrix with size of 270x560 and has a value from 0 to 7 in it.

i want to extract a values of 5 in this matrix and also an information about the location (row and column) of these value in 270x560 matrix

is there any reference to do it?

here is some code that i already tried

x = B(:,:) ;
y = B(:,:) ;
z = x(y==5)

also i tried using find function but the result shows some random numbers

out = find(B == 5);

Answer 1

[Cris LaPierre]

Use this syntax: [row,col] = find(___)

[row,col] = find(B == 5);

Answer 2

[Star Strider]

Try this —

M = randi([0 7], 5, 6)                                      % Example Matrix

M = 5×6

7 1 7 5 5 7 1 6 1 2 2 4 5 1 6 3 6 1 2 7 4 2 5 0 2 2 5 1 6 7

[r,c] = find(M == 5);                                       % r = Row,  c = Column, For Each Occurrence

r = 5×1

3 5 1 1 4

c = 5×1

1 3 4 5 5

row_col = [r c]                                             % Matching Row, Column References

row_col = 5×2

3 1 5 3 1 4 1 5 4 5

.

[Fadhurrahman]

@Star Strider thank you very much. i think i need the code on the last one you share. thats one really helped

[Star Strider]

My pleasure!