1. FIGURE Example of environmental data sampling showing how data is combined in geostatistical analysis. From
From A Primer of GIS, 2nd edition, by Francis Harvey. Copyright by The Guilford Press.

2. FIGURE nationalmap.gov offers an interactive mapping application—here, the per capita number of jobs for a portion of the country is shown. From
From A Primer of GIS, 2nd edition, by Francis Harvey. Copyright by The Guilford Press.

3. FIGURE Cartograms show how other geographical characteristics influence mapped attributes, issues that geostatistics can take into account. From
From A Primer of GIS, 2nd edition, by Francis Harvey. Copyright by The Guilford Press.

4. FIGURE Archaeological least-cost model of the possible path of a Roman road in England. Slope is considered to be the primary determinant of the possible path of the road. Courtesy of Jason Menard.
From A Primer of GIS, 2nd edition, by Francis Harvey. Copyright by The Guilford Press.

5. FIGURE 16.6. Example of weights assigned to elevation (z) based on distance points being evaluated.
From A Primer of GIS, 2nd edition, by Francis Harvey. Copyright by The Guilford Press.