If you have a correct expression, a syntax error window may pop up. If so, clear don’t the expression and try again. To convince yourself that this operation selected the records you want, click on the Selected records icon, found near the bottom-center of the Table window, and shown below. Clicking on the selected button displays only the selected records. Verify your selection only contains records beginning with L1. Then, revert back to records. Show All Right click on the column, and left click on the Field Calculator in the “Reclassed” dropdown menu.
If you don’t have a correct expression, a syntax error window may pop up. If so, clear the expression and try again. To convince yourself that this operation selected the records you want, click on the Selected records icon, found near the bottom-center of the Table window, and shown below. Clicking on the selected button displays only the selected records. Verify your selection only contains records beginning with L1. Then, revert back to Show All records. Right click on the “Reclassed” column, and left click on the Field Calculator in the dropdown menu.