Code Duplication    Length = 6-6 lines in 2 locations

src/PhpSpreadsheet/Calculation/Statistical.php 2 locations

@@ 52-57 (lines=6) @@
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        $array1 = Functions::flattenArray($array1);
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        $array2 = Functions::flattenArray($array2);
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        foreach ($array1 as $key => $value) {
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            if ((is_bool($value)) || (is_string($value)) || (is_null($value))) {
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                unset($array1[$key]);
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                unset($array2[$key]);
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            }
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        }
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        foreach ($array2 as $key => $value) {
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            if ((is_bool($value)) || (is_string($value)) || (is_null($value))) {
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                unset($array1[$key]);
@@ 58-63 (lines=6) @@
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                unset($array2[$key]);
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            }
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        }
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        foreach ($array2 as $key => $value) {
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            if ((is_bool($value)) || (is_string($value)) || (is_null($value))) {
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                unset($array1[$key]);
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                unset($array2[$key]);
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            }
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        }
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        $array1 = array_merge($array1);
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        $array2 = array_merge($array2);
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