maxPosition BasicList -- position of largest element

maxPosition BasicList -- position of largest element

Synopsis:

Usage: n = maxPosition x

Function: maxPosition -- position of largest element

Input:

x, an instance of class BasicList.

Output:

n, an instance of class ZZ: the position of the largest element in the list x.

If the largest element occurs more than once, then the first occurrence is used. If x has length 0 an error results.

See also:

minPosition BasicList -- position of smallest element

Code:

     -- ../../../Macaulay2/m2/lists.m2:22-28
     maxPosition BasicList := ZZ => x -> (
          if # x === 0 then error "expected a nonempty list" 
          else (
               m := x#0; 
               pos := 0;
               scan(1 .. # x-1, i -> if x#i>m then (m=x#i;pos=i));
               pos))