Minimum cell of a matrix

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Ken
Ken 2016-10-11
评论： Walter Roberson 2016-10-16
I am trying to find the minimum-value cell of a matrix. To simplify, I take a 3X3 matrix, I tried this but no luck.
Row1=2;
Col1=2;%This is the mid-cell of the 3X3 Matrix
min=99;
if B(Row1,Col1)~=0
for Row =-1:1:1
for Col==-1:1:1 % this gets the adjacent cells of the 3X3 matrix
if B(Row+Row1, Col+Col1)<min
min=B(Row+Row1,Col+Col1);

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回答（1 个）

Marc Jakobi
Marc Jakobi 2016-10-11
编辑：Marc Jakobi 2016-10-11
You need to end every loop and if statement with an end keyword
Min=inf;
for Row =1:size(B,1)
for Col==1:size(B,2)
if B(Row, Col)<Min
Min=B(Row,Col);
end
end
end
You may want to read some of these tutorials.
Is this a homework assignment? If not, you can also just use
m = Min(B(:));
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Ken
Ken 2016-10-15
Thanks. My matrix is the subject matrix. block.data is my 3X3 matrix?
Walter Roberson
Walter Roberson 2016-10-16
Yes, block.data would be the 3 x 3 matrix currently being examined.

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