Map > Data Science > Explaining the Past > Data Exploration > Univariate Analysis > Missing Values > Exercise
 

Missing Values - Exercise
  1. Open "Orange".
  2. Drag and drop "File" widget and double-click to load a dataset (weather_missing.txt).
  3. Drag and drop "Impute" widget and connect it to the "File" widget.
  4. Double-click on the "Impute" widget and select "Average/Most frequent" option (try other options too).
  5. Drag and drop "Data Table" widget and connect it to the "Impute" widget to view the replacement result.

 
The missing values (red boxes) are replaced using "Mean/Most frequent" method.