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Extracting a value from one column to its corresponding column?

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Yasir Ali
Yasir Ali 2016-12-15
编辑： Stephen23 2016-12-15
Hi, I have a matrix (say 7 x 2). first column contains id and second column contains scores. I want to write a code to extract id from first column which is corresponding to minimum score in second column?
M = 1 363.026
11 330.302
24 289.07
55 240.3120
59 188.209
79 162.937
87 108.104
I know 87 has lowest score. But how to write effective code so that for larger matrix it should fetch id corresponding to lowest score? Thanks

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KSSV
KSSV 2016-12-15
编辑：KSSV 2016-12-15
[val,idx] = min(M(:,2)) ; % get minimum value and position from scores
id = M(idx,1) ; % get the id of the minimum score

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