find max vector form many vectors

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fatemeh
fatemeh 2013-10-18
i have many 1*2 vectors how can i find the vector with the maximum value at the second index?

回答(1 个)

Azzi Abdelmalek
Azzi Abdelmalek 2013-10-18
If you have n vectors with the same size, you can create one matrix nx2. It's not a good idea to create those vectors, just use a matrix nx2, it contains all your vectors.
a=[10 20]
b=[100 30]
c=[5 2]
% create a matrix M
M=[a;b;c]
c2=M(:,2) % The second column
[max_value,index]=max(c2)
  5 个评论
fatemeh
fatemeh 2013-10-18
how? i write this vectors for 1000 times in the M ?
Walter Roberson
Walter Roberson 2013-10-18
Did you read the FAQ link I posted?
Best solution: do not use 1000 different vectors to start with.

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