Software Reviews : TRAJECTORIES TS (Time Series),with Version 4.0 of the user's manual Publisher: DBI Software Products,One Energy Place,5805 East Pick- ard Road,Mt. Pleasant,Mi 48858 (telephone: [phone]) Year of Publication: Copyright 1983,revised 1986 Materials: Three program diskettes,hardbound user's manual,spiral-bound supplement on the Time Series component Price: $495 Machine Specificity: No list is provided. System Requirements: 128K (64K with CP/M),two disk drives,80- column printer Effectiveness: Good,within a limited range User-Friendliness: Good Documentation: Fair

Abstract

TRAJECTORIES TS is a general-purpose statistical package for microcomputers. It provides a variety of statistical and file-handling procedures. The time series component is limited to data transformations, such as moving averages, lagging a variable, and creating seasonal indices. It does not address higher order concerns such as autocorrelation.