Catchall

CatchAll is a fast, easy-to-use, platform independent software package which applies optimized numerical searching to compute maximum likelihood estimates for finite-mixture models; linear regression-based models with non-diagonal weight matrices; as well as all existing simple nonparametric methods; while accounting for outlier detection/deletion and other data-analytic considerations. Given sample “frequency count” data, CatchAll computes 12 different diversity estimates and compares the results via a model-selection algorithm, providing the user with a best overall choice, along with close competitors. It is accompanied by an Excel-based graphical display spreadsheet program.

[www.northeastern.edu/catchall Freely downloadable, with user manual, source code] (if desired), etc., at www.northeastern.edu/catchall .