Geographic Information Systems (GIS)

Use this for “A county stores its road network and a satellite image of its land. Which should be vector and which raster?”

Use this for “On a county map, should a lake be stored as a point, a line or a polygon?”

Use this for “How much land lies within 100 m of a 2 km road?”

Use this for “How far is it from (2, 3) to (8, 11) km, straight and along a street grid?”

Use this for “A solar-farm overlay weighs slope 0.5, distance to power lines 0.3 and land cover 0.2. A cell scores 4, 2 and 5. How suitable is it?”

Use this for “Shrubs are counted in 40 quadrats: mean 2.5 a quadrat, variance 6. Find the variance-to-mean ratio and the chi-square. Are the shrubs clustered?”

Use this for “Three clinics sit at (2, 1), (4, 5) and (9, 3) km on a grid. Find their mean center and standard distance.”