secons max number in a vector
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Hi I need to find maximum and second maximum number in a vector. Can you please help?
For max, its max(X), but for second max I am unable to figure out.
Your help is appreciated
P
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Rick Rosson
2011 年 11 月 24 日
a = max(X);
Y = X(X ~= a);
b = max(Y);
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Walter Roberson
2011 年 11 月 25 日
There are apparently efficient linear-time routines to find the N largest or N smallest numbers in a list, and supposedly they do not need to do a mini-sort of N elements to find the proper place in the list for each new value being tested. I have not yet been able to understand the logic in the paper that describes the internal comparison scheme.
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