How to summarize data from one second in Graphite?

How to summarize data from one second in Graphite?

References

Reference NO 1

http://stackoverflow.com/questions/15193210/how-to-summarize-data-from-one-second-in-graphite

Reference NO 2

http://graphite.readthedocs.org/en/1.0/functions.html

Reference NO 3

http://obfuscurity.com/2012/04/Unhelpful-Graphite-Tip-9

Reference NO 4

http://www.justincarmony.com/blog/2012/06/05/customizing-graphite-charts-for-clearer-results/

Reference NO 5

http://numbers.brighterplanet.com/2012/08/27/graphite-beyond-the-basics/

Reference NO 6

https://answers.launchpad.net/graphite/+question/177524

Reference NO 7

http://code.hootsuite.com/accurate-counting-with-graphite-and-statsd/

Reference NO 8

http://matt.aimonetti.net/posts/2013/06/26/practical-guide-to-graphite-monitoring/