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Extract specific values and row coloumn information in matrix

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Fadhurrahman
Fadhurrahman 2022-1-31
评论： Star Strider 2022-1-31
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);

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采纳的回答

Cris LaPierre
Cris LaPierre 2022-1-31
Use this syntax: [row,col] = find(___)
[row,col] = find(B == 5);

更多回答（1 个）

Star Strider
Star Strider 2022-1-31
Ran in:
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
.

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