Adding attributes with the Field Calculator

- When we created our PyramidComplex feature class,…we added a field, called Name.…In the last movie, we joined a new field…of pyramid heights from a .csv file.…We can also permanently add additional fields…directly to the attribute table at any time.…When we do so, ArcMap provides the ability…to calculate some attributes for us.…Let's add a couple of more attributes…to our PyramidComplex feature class.…I'll start by right-clicking on it,…and choosing Open Attribute Table.…Because this was created inside of a geodatabase,…it automatically added the SHAPE_Length…and SHAPE_Area columns.…

Because we used a coordinate system…that was measured in meters,…these numbers, here, also represent meters.…The SHAPE_Length for the Khufu pyramid is 1,087 meters.…The SHAPE_Area is 73,938 square meters.…Let's go ahead and add a couple more attribute fields, here.…To do that, I'll go up to this button, here,…called Table Options.…From there, I'll go down to Add Field.…The field that I want to add is called Acres.…The Type is going to be a double-precision number.…