granite_reckoner 0.3.2

A simple aggregator enabling basic statistical operations on Vec<T> in the specified number of threads. Works for all Rust's built-in numeric types.
Documentation 
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LOAD TESTS
----------

Results from postgres on data_1M.csv:
 COPY 1000000
 
        sum         
--------------------
 -916668927.4241314        (~ granite-reckoner: -916668927.4241154 (OK))
(1 row)

postgres=# select max(a) from test;
        max        
-------------------
 999998.7204128127         (= granite-reckoner (OK))
(1 row)

postgres=# select min(a) from test;
        min         
--------------------
 -999996.8386372058        (= granite-reckoner (OK))
(1 row)

postgres=# select variance(a) from test;
      variance      
--------------------
 332928057073.77057        (~ granite-reckoner: 332928057073.7778 (OK))
(1 row)

postgres=# select stddev(a) from test;
      stddev       
-------------------
 576999.1829056415         (~ granite-reckoner: 576999.1829056414 (OK))
(1 row)

postgres=# select avg(a) from test;
        avg         
--------------------
 -916.6689274240998        (~ granite-reckoner: -916.6689274241076 (OK))
(1 row)

postgres=# select avg(a*a) from test;
        avg        
-------------------
 332928564427.6407         (~ granite-reckoner: 332928564427.6432 (OK))
(1 row)

Results from postgres on data_3M.csv:
COPY 3000000

postgres=# select sum(a) from test2;
        sum        
-------------------
 2415672220.437594         (~ granite-reckoner (2415672220.4374223)
(1 row)

postgres=# select min(a) from test2;
         min         
---------------------
 -2999998.2130748853       (= granite-reckoner (OK))
(1 row)

postgres=# select max(a) from test2;
        max         
--------------------
 2999996.6583054466        (= granite-reckoner (OK))
(1 row)

postgres=# select variance(a) from test2; 
      variance      
--------------------
 2998934019869.4346        (~ granite-reckoner: 2998934019869.524 (OK))
(1 row)

postgres=# select stddev(a) from test2; 
      stddev       
-------------------       
 1731743.058270915         (~ granite-reckoner: 1731743.0582709215 (OK))
(1 row)

postgres=# select avg(a) from test2; 
        avg        
-------------------
 805.2240734791476         (~ granite-reckoner: 805.2240734792233 (OK))
(1 row)

postgres=# select avg(a*a) from test2; 
        avg         
--------------------
 2998933668610.7134        (~ granite-reckoner: 2998933668610.6597 (OK))
(1 row)