Using the max function to recieve two outputs

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Nathan Freitas
Nathan Freitas 2015-9-23
编辑： Stephen23 2015-9-23
Hey, I have three vectors with 5 elements in each. Let them be x, y and t. I want to find the maximum value in x, when y >= 10. I've done this with:
x = [1 3 8 9 11]
y = [10 10.1 10.5 9 8]
t = [0.6 0.7 1 1.2 1.4]
d = max(x(find(y >= 10)))
This correctly returns the max value, I now what to find the value of t that corresponds to the max value in x. For example d = 8, and is the 3rd element in x, how do I automate the proccess of finding the 3rd element in t, which is 1.
Apperently I can use max to recieve two outputs, which can be both x and t]
Thanks!

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Stephen23
Stephen23 2015-9-23
编辑：Stephen23 2015-9-23
You need to use the second output of max, which is an index. Here are two ways of doing this:
With find
idy = find(y>=10)
[d,idx] = max(x(idy))
t(idy(idx))
With temporary variable
idy = y>=10;
tmp = t(idy);
[d,idx] = max(x(idy))
tmp(idx)

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