14,970
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Data cleaning: Difference between revisions
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* EXCEL: [http://www.extendoffice.com/documents/excel/1499-count-duplicate-values-in-column.html How to count duplicate values in a column in Excel?] | * EXCEL: [http://www.extendoffice.com/documents/excel/1499-count-duplicate-values-in-column.html How to count duplicate values in a column in Excel?] | ||
* PHP: [http://php.net/manual/en/function.array-unique.php PHP: array_unique], [http://php.net/manual/en/function.array-intersect.php PHP: array_intersect] | * PHP: [http://php.net/manual/en/function.array-unique.php PHP: array_unique], [http://php.net/manual/en/function.array-intersect.php PHP: array_intersect] | ||
* MySQL: [http://www.mysqltutorial.org/mysql-distinct.aspx MySQL DISTINCT - Eliminate Duplicate Rows in a Result Set] | |||
== outlier == | == outlier == | ||