如何找到最小索引？

Question

I have vector a=[7;4;3;2;5;6;2] of length 7 and the element 2 is the minimum element, but there are two locations of where the minimum is.

I need to find the smallest position of the minimum element. How can this be done in MATLAB?

Answer 1

Use the second output of min . It gives you the location of where the minimum was found. In the case of there being more than one element being the minimum, the location returned is the first one found, corresponding to the smallest location:

>> a=[7;4;3;2;5;6;2];
>> [~,ind] = min(a);
>> ind

ind =

     4