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<?php $data = []; $size_data = 0; $range = 1; $i = 0; $k = 2/($range+1); for ($i; $i<$size_data; ++$i) { $lastEMA = $lastEMA + $k * ($data[$i]-$lastEMA); } $div = $range + 1; for ($i = 0; $i != $size_data; ++$i) { $lastEMA += (($data[$i] - $lastEMA) << 1) / $div; }
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