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28 Work with Attribute Table (2): Edit Fields

So far, we have opened and read the attribute table to understand the types of informational data involved in the figure. In this section, we will edit the preexisting (or “default”) item names to help users recognize the information in the attribute table. Here is the reason why: open the attribute table of Monroe_census_track_tree_imp, and we can find two MEAN—one for the tree canopy and another for the imperviousness. However, the readers (or even the GIS analysts who create this data) are unable to point out which MEAN is for which.

To clarify the information of the item, we will perform a table edit to change the field name: Edit Alias in the attribute table.

  1. Right-click the MEAN and click Fields
  2. Scroll down on the Fields: Monroe_census_track_tree_imp window, find the first MEAN, and change it to “Tree_pct_MEAN”: (Figure)
  3. Change the second MEAN to “Impervious_pct_MEAN”
  4. Close the Fields: Monroe_census_track_tree_imp. Click Yes to the Unsaved Changes Found message.

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