GISP 6: Analytical Methods questions with correct answers

What are the ways you can SELECT features based on ATTRIBUTE? -New Selection -Add to Selection -Remove from Selection -Subset Selection -Switch Selection -Clear Selection Semivariogram a model of the variance between points and their distance apart What is map algebra? set of primitive operations that allows two or more raster layers of similar dimensions to produce a new raster layer using algebraic operations such as addition, subtraction etc. What is Classification? process of representing members of a group by the same symbol, usually defined in a legend What is the one of the most basic questions asked of a GIS? "what's on top of what?" e.g. What landuse is on top of what soil type? e.g. What parcels are within the 100-year floodplain? e.g. What roads are within what counties? What are the methods of spatial selection involving CONTAIN? -Contains - features contain an input polygon -Completely contains - features must be completely in an input polygon -Contains Clementini - features must be completely in the input polygon but if it's on the boundary, it will not be selected -Contained by - Same as within What are the four classes of map algebra transformations? -local