$vals = [
['by'=>'a', 'val'=>1],
['by'=>'a', 'val'=>2],
['by'=>'a', 'val'=>3],
['by'=>'b', 'val'=>10],
['by'=>'b', 'val'=>20],
['by'=>'b', 'val'=>30],
];
$statsTotal = new StatsTotalIt(['by'],['val']);
$statsTotal->arrayAdd($vals);
$totals = $statsTotal->get_basicStats();
print_r($totals);
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Fatal error: Uncaught Error: Class "ia\Math\StatsTotalIt" not found in /lamp/www/iaLib/ia_examples/usage/ia/Math/TotalItStats_usage.php:47
Stack trace:
#0 {main}
thrown in /lamp/www/iaLib/ia_examples/usage/ia/Math/TotalItStats_usage.php on line 47
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