Neat way to loop with both index and value in Matlab

Question

A lot of my loops look like this:

items = [3,14,15,92];
for item_i = 1:numel(items)
    item = items(item_i);
    % ...
end

This looks a bit messy to me. Is there some loop construct that lets me loop through the items and carry the index at the same time?

I'm looking for a syntax along the lines of for item_i as item = items or for [item_i item] = items.

Answer 1

Similar to Chris Taylor's answer you could do this:

function [ output ] = Enumerate( items )
output = struct('Index',num2cell(1:length(items)),'Value',num2cell(items));
end


items = [3,14,15,92];
for item = Enumerate(items)
   item.Index
   item.Value
end

The Enumerate function would need some more work to be general purpose but it's a start and does work for your example.

This would be okay for small vectors but you wouldn't want to do this with any sizable vectors as performance would be an issue.