MathGroup Archive 2007

[Date Index] [Thread Index] [Author Index]

Search the Archive

Find index of maximal element in multi-dimensional array


Hi all,

Here's a two-dimensional array of numbers:

z = Table[Random[], {5}, {6}]

What's an efficient way of finding the index of the maximal element of
z? Here's one way:

Last[Sort[Flatten[MapIndexed[{#2, #1} & , z, {2}], 1],
   OrderedQ[{#1[[2]], #2[[2]]}] & ]]

The output is like this:

{{5, 4}, 0.921344}

But it's so untidy. Any better ideas?

Cheers,

Andrew



  • Prev by Date: Showing that ArcSinh[2]/ArcCsch[2] is 3?
  • Next by Date: Re: record intermediate steps
  • Previous by thread: Re: Showing that ArcSinh[2]/ArcCsch[2] is 3?
  • Next by thread: Re: Find index of maximal element in multi-dimensional array