Probably the most common filtering operation is to remove missing values.
For the examples below we’ll be using the Palmer Penguins data.
- 
Launch the Transformation widget. Select the data frame that you want to filter. 
- 
Hover over the kebab icon to the right of any of the NaNvalues in thesexcolumn. Then click on the Filter values like this popup button.  
- 
A dialog appears with fields to choose a column, an operator and a value. The value is set to NaNby default. Choose the!=operator.  
- 
The preview is updated. Press the button. 
- 
The code is inserted into the notebook and run immediately. Records with missing values in the sexcolumn are removed.
 
- 
Group and aggregate records to generate summary data. 
