Example output:

$ seq 10000 | ./stddev
below cmd output started 2018 Sun Jan 21 11:57:25 AM PST
minimum 1
maximum 10000
range 9999
count 10000
sum 50005000
arithmetic_mean 5000.5
geometric_mean 3680.8271822200186
median 5000.5
mode none
standard_deviation 2,886.751332
median_absolute_deviation 2,500.000000
mean_absolute_deviation 2,500.000000

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