December 2017
Intermediate to advanced
434 pages
10h 29m
English
Content preview from Learning Elastic Stack 6.0
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Extended stats Aggregation
The extended stats aggregation returns a few more statistics in addition to the ones returned by the stats aggregation:
GET bigginsight/_search{ "aggregations": { "download_estats": { "extended_stats": { "field": "downloadTotal" } } }, "size": 0}
The response looks like the following:
{ "took": 15, "timed_out": false, ..., "hits": { "total": 242836, "max_score": 0, "hits": [] }, "aggregations": { "download_estats": { "count": 242835, "min": 0, "max": 241213, "avg": 9049.102065188297, "sum": 2197438700, "sum_of_squares": 133545882701698, "variance": 468058704.9782911, "std_deviation": 21634.664429528162, "std_deviation_bounds": { "upper": 52318.43092424462, "lower": -34220.22679386803 } } }}
It also returns the sum ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.