What is Column Mapping?
Editing or Deleting Training Examples
Column mapping is used to directly map a single source column (from the left table) to a single output column (in the right table). Column mapping is useful when the source data in a specific column doesn't need to be transformed or cleaned up, just mapped to an output column.
Step 1: Click on a cell in the output table to get started.
Step 2: Type =$ to see the list of source columns you can map to.
Step 3: Select the name of the source column that you want to map to.
Step 4: After selecting the source column from the dropdown, the data from the source column will populate the output column.
Step 5: Review the output column to confirm that you have selected the correct source column. If you need to make any changes, select the cell that contains the original column mapping formula, edit it, then press enter.
Cells that have errors will have a red border. The cell that contains the column mapping formula may have an error, and other cells within that column may have errors. In either case, you must edit the column mapping formula to resolve these errors.
If you want to edit a formula, click on the cell that contains the column mapping formula, edit it, then press enter.
If you want delete a specific column mapping formula, click on the cell that contains the column mapping formula, then click on the delete button to the right of that cell.