Hmm, I'm realizing that I'm not being entirely clear.

Say you don't have data for *every* (or every month, year, etc), so you only want those days/months/years in %weather_archive for which you have data.

So, I'm assuming you'll want to iterate through the original array of hashes, pulling out unique values for days/months/years.

To simplify this, let's say I've munged the data a bit, and now my hashes looks like this:

%weather_day = (
    Year   => "2003",
    Month  => "April",
    Day    => "15",
    High   => "73f",
    Low    => "49f"
);

push (@weather_days, %weather_day);

[download]

How can I extract the unique year/month/day values, and then programmatically build up the %weather_archive hash?

Once I have %weather_archive, how can I print it so that it looks something like this?

2003
  April
    15
      High: 73f
      Low:  49f

[download]

In reply to Re: Re: Re: Re: 3D array of hashes by ManyCrows
in thread 3D array of hashes by ManyCrows

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