Querying calls up information about items on the map.
Click on the query tool and then click on the map. This brings up a table of information on the selected map layer (the highlighted layer). The selected layer is queried even if it is not currently displayed on the map (checked in red). To change the map layer queried, select a new layer in the map layers pane.
Once you've queried a layer, its table will pop up. This table lists information about the point you've selected. For example, if you query a boundary layer, you will get information on the location queried (queried x and y), the coordinates of the closest Boundary Element (BE) to the queried point (point x and y), the Boundary Membership Value for that BE, the average gradient magnitude (or Boundary Likelihood Value - BLV) for all variables in the data set at that location, and then BLVs and gradient angles for each individual variable in the data set at that location.
If you have trouble understanding the information presented in a boundary query, see the appropriate method description. See constrained clustering, wombling, or fuzzy classification for more details.
See also: