References
http://timeseriesjl.readthedocs.io/en/latest/
https://documents.software.dell.com/statistics/textbook/time-series-analysis
http://home.ubalt.edu/ntsbarsh/stat-data/forecast.htm
http://userwww.sfsu.edu/efc/classes/biol710/timeseries/timeseries1.htm
https://onlinecourses.science.psu.edu/stat510/node/47
http://www.itl.nist.gov/div898/handbook/pmc/section4/pmc4.htm