Spatial Analysis
Part II -
Multi-criteria evaluation and Weighted Linear Combination
Multi-criteria evaluation (MCE) was used to give suitability
ratings to each of the four health indicators. Values of 255 were
assigned to those criteria having a high suitability for good health and
values of zero were assigned to those values having low suitability. These
factors were then given weighted values (see weight module below).
Income was weighted the highest as it influences health status greatly.
MCE was then run using the Weighted Linear Combination (WLC) option. The
constraint used in this operation was the buffered park image showing areas
within 2km of a park (see last park image in
part 1
). The results obtained from the WLC were acceptable as the consistency
ratio was 0.04 (module results are below).
