Abstrakt: |
Colenutt R.J. (1968) Building linear predictive models for urban planning, Reg. Studies 2, 139-143. Because linear models are being used more often for predictive purposes in planning, it is essential that the underlying assumptions and limitations of these models are understood. A model can contain two basic types of error; measurement and specification error. These errors can accumulate as models are merged into larger model systems so that accurate prediction becomes increasingly difficult. Model evaluation is a further important aspect of model building and should include estimation of the sensitivity and stability of parameters. Despite their limitations the models are useful if designed and interpreted carefully. |