transformations:selectionfilter
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transformations:selectionfilter [2015/04/10 11:05] – elenap | transformations:selectionfilter [2021/07/19 01:03] (current) – craigt | ||
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- | ===== Filter | + | {{ transformations: |
+ | ====== | ||
+ | Category: Transform / Filters\\ | ||
- | This is a filtering transformation that allows finding specific data in a table. Data can be filtered in one column at a time. | + | \\ |
+ | =====Description===== | ||
+ | This action filters | ||
- | Filtered data displays only the rows that meet the pre-defined criteria and hides rows that you do not want displayed. | + | \\ |
+ | =====Use cases===== | ||
+ | Create subsets of a dataset based on values in a specific column. | ||
- | EXAMPLE | + | Clean a dataset by removing records that may have " |
- | **Source table:** The longest rivers | + | Remove or keep records containing a " |
- | ^ | + | \\ |
- | | Nile | + | =====Action settings===== |
- | | Amazon | + | ^Setting |
- | | Yangtze | + | |Filter column|Select the column containing the values to be used for filtering. |
- | | Mississippi | + | |Keep/Remove columns|Select whether to keep the rows containing the selected values or remove them. Select the individual values\\ to keep/remove from the list at the bottom of the settings pane. Options: |
- | | Yenisei | + | |
- | | Yellow River | 5464 | Asia | | + | |
- | | Ob | 5410 | Asia | | + | |
- | | Paraná | + | |
+ | \\ | ||
+ | =====Remarks===== | ||
+ | This action keeps or removes rows containing selected whole values in a single column and does not support partial matches or multiple columns.\\ | ||
- | **Objective: | + | The choice to use //keep// vs. //remove// depends on how you want to handle new values that are introduced in the dataset. |
- | **Transformation parameters:** | + | \\ |
+ | =====Examples===== | ||
+ | **Example:** Find out which are the longest rivers in both Americas.\\ | ||
- | | + | **Source table:** The longest rivers in the world |
- | * Filtering mode: Keep only selected values | + | ^River |
- | | + | | Nile | 6650| Africa |
- | + | | Amazon | |
- | **Output | + | | Yangtze |
+ | | Mississippi | ||
+ | | Yenisei | ||
+ | | Yellow River | 5464| Asia | | ||
+ | | Ob | 5410| Asia | | ||
+ | | Paraná | ||
+ | \\ | ||
+ | **Action parameters: | ||
+ | > Column is " | ||
+ | > Filtering mode is "Keep only selected values" | ||
+ | > Values | ||
+ | \\ | ||
+ | **Result | ||
+ | ^River | ||
+ | | Amazon | ||
+ | | Mississippi | ||
+ | | Paraná | ||
- | ^ River ^ Length | + | \\ |
- | | Amazon | + | ====Community examples==== |
- | | Mississippi | + | * [[https:// |
- | | Paraná | + | |
+ | | ||
+ | * [[https:// | ||
+ | * [[https:// | ||
+ | * [[https:// | ||
- | === See also === | + | \\ |
+ | =====See also===== | ||
* [[transformations: | * [[transformations: | ||
+ | * [[transformations: | ||
+ | * [[transformations: | ||
transformations/selectionfilter.1428678342.txt.gz · Last modified: 2015/04/10 11:05 by elenap