Here's a quick recap of the changes we've made to RATS from Version 4.0 to the present. For general information, please see RATS Information and Features . DLM works with state space models, employing Kalman filtering and smoothing. There have been a number of significant changes to the non-linear estimation instructions.
Most instructions now offer a choice of methods.
Version 4.35 is a Macintosh-only release, which introduced a native PowerMac version of RATS, and incorporated all of the changes and new features introduced with versions 4.1, 4.2, and 4.3 on other platforms, as described below. Built-in instruction for solving linear programming and quadratic programming problems. New function for solving systems of linear equations. Version 4.2 was a major update that included the introduction of the first versions of RATS written for the Windows operating system. Simplified handling of two-scale graphs.