Filter rows
The Filter rows transformation is used to exclude rows based on a boolean expression. Only those rows matching the expression (the rows for which the expression is True) will be included in the data table.
See
Transforming data for information about how
to add a transformation to an analysis.
Tip: You can easily create a filter rows transformation
directly from a modified filter. See
Creating a filter transformation for more
information.
| Option | Description |
|---|---|
| Available columns | Shows all available columns. Select a column by clicking on it in the list and then click Insert Columns, or double-click on the column to send it to the Expression field. You can narrow down the list of available columns by typing a part of a name in the search field. You can also enter an expression in the field, using the rules described on the Searching in Spotfire clients page. Press Ctrl or Shift to select multiple columns. |
| Insert Columns | Inserts the selected columns in the Expression field. |
| Available properties for column | Shows all properties that you can use in
the calculation of a new column. The column properties are specific to the
column selected in the Available columns list to the left.
Select a property by clicking on it in the list and then click on the Insert Properties button, or double-click on the property to send it to the Expression field. The property will automatically be inserted as a value in this context. See Properties in expressions for more information. You can narrow down the list of available properties by using the search field. |
| Insert Properties | Inserts the properties selected in the Available properties for column list at the current cursor position in the Expression field. |
| Category | Select a category of functions to limit the choices in the Function list: |
| Function | Select a function by clicking on it in the list and then click Insert Function, or double-click on the function to send it to the Expression field. You can narrow down the list by typing a part of a name in the search field. |
| Description | Shows a brief description of the selected function. For more detailed descriptions, see the Functions chapter. |
| Insert Function | Inserts the selected function in the Expression field. |
| Expression | This is the text field in which you build
your expression. You can insert columns and functions from the lists or enter
text as in any standard text editor.
See Expression keyboard shortcuts for information about available shortcuts. |
| Recent expressions | Shows the ten expressions you have most recently created. You can select one of these and click Insert to insert the expression into the Expression field. |
| Insert | Inserts the selected Recent expression into the Expression field. This will replace the entire content of the Expression field. |
| Resulting expression | [Not applicable.] |