In the R Documentation help page for the ca_loc_aoipreset function, the documentation says "idfld is the field which contains the values you want to use to select the preset areas. For a list of fields you can use for each AOI preset, see the built-in list ca_aoipreset_idflds."
The built-in list should read "aoipreset_idflds", not "ca_aoipreset_idflds".
A similar misnaming of the built-in list occurs in the idval description.
In the R Documentation help page for the ca_loc_aoipreset function, the documentation says "idfld is the field which contains the values you want to use to select the preset areas. For a list of fields you can use for each AOI preset, see the built-in list ca_aoipreset_idflds."
The built-in list should read "aoipreset_idflds", not "ca_aoipreset_idflds".
A similar misnaming of the built-in list occurs in the idval description.