From: Steve Wilhelm <steve@...831.com>
Date: 2010-03-19T07:50:53+09:00
Subject: Grouping elements of an array

I have an array of records that contain timestamps at random intervals.
The records are ordered by timestamp.

I would like to convert the array into an array of arrays; each subarray
would contain "grouped records." Grouping would occur if the timestamp
of the next element in the original array is within thirty seconds of
the current element.

Example (second column is timestamp in seconds starting from zero).

A 0
B 15
C 35
D 100
E 205
F 215
G 300

would result in

[[A, B, C], [D], [E, F], [G]]

Any help on how to do this in the "Ruby Way" would be appreciated.

- Steve W.
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