I need to coalesce 'n' elements of a multi-thousand element array. The array looks like: 
'2014-11-18-06:40:31|45.68'
'2014-11-18-06:40:52|45.7'
'2014-11-18-06:41:12|45.72'
'2014-11-18-06:41:32|45.72'

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This is a timestamp (at approx. 20 second intervals) and a value. I need to combine 'n' number of lines at a time and average the value of those lines. I have to do this over hundreds of files each with thousands of lines. Any thoughts?

In reply to take 'n' array elements at a time by fionbarr

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