Matlab Minimum

Hello,

If I have an array for example: A=[10 11 12 1 8 9 1 3 5] and I use the '[C,I]=min' function to find the minimum value of the array. But if the array has two or more same minimum values, the MIN function always return the first value!How can I get the last minimum value of an array?In my example, I want the 7th value 1 of array A and not the 4th.However, I want this function to work for random arrays and not only for array A.

Thank you..!!

Answer 1

[Matt Tearle]

find(A==min(A))

will get them all. Then you can choose whichever you like. To get just the last one

find(A==min(A),1,'last')

[athpapa -]

when I use this function, returns the indexes of both minimums (4, 7). How can I return only the last (7)? But I want this function for random arrays and not only for my example!

[athpapa -]

I haven't seen your complete answer!Thank you..!!!:)

[Andreas Goser]

Excellent! Didn't new that one.

Answer 2

[Andreas Goser]

My rough idea is along the lines of sorting the vector first (with saving the indices) and then identify the last minimum.

Answer 3

[David Young]

If you only want the last one, you could use

[v, ind] = min(A(end:-1:1));
ind = 1 + length(A) - ind;