Glossary
LAN
Layer
One of the thematic variables that classify the surface of the earth. Geography can be described using a number of layers including elevation, land use, soil, geology, vegetation, drainage, roads, built up areas etc.
Least Square Method
A statistical approach to estimate an expected value or function with the highest probability by minimizing the sum of square of the residuals (difference between observation and an estimated value of function).
Line
A line segment connecting two points.