Last week, I waxed rhapsodic about why we wrench (the joy of solving problems, making choices, doing things our own way, ...

This example illustrates zoned network diagrams. The Widget Manufacturing project is used to illustrate some aspects of this feature. The data set DETAILS contains a variable phase, which identifies ...

The following example analyzes socioeconomic data provided by Harman (1976). The five variables represent total population, median school years, total employment, miscellaneous professional services, ...