New R Extension for IBM SPSS Statistics: Travelling Salesperson Problem

This extension uses the TSP package in R to solve the traveling salesperson optimization problem. The extension supports both symmetric and asymmetric costs (distances). In what follows, the term node is used to represent the points or locations to be included in the optimization problem and the term cost describes the distance or generalized distance...  Continue reading New R Extension for IBM SPSS Statistics: Travelling Salesperson Problem

Updated versions of Analytic Server 3.0 and Modeler client 18.0

I would like to announce that we have updated Analytic Server 3.0 to add support for the following platforms: IBM BigInsights for Apache Hadoop 4.2 Cloudera CDH 5.6 and 5.7 Hortonworks HDP 2.4 Apache Cassandra 3.0 If you wish to take advantage of these capabilities, please download Analytic Server 3.0 again if you downloaded it before June 23. We have also...  Continue reading Updated versions of Analytic Server 3.0 and Modeler client 18.0

Weekly and monthly graphs for monitoring crime patterns (SPSS Statistics)

I was recently asked for some code to show how I created the charts in my paper, Tables and Graphs for Monitoring Crime Patterns (Pre-print can be seen here). I cannot share the data used in the paper, but I can replicate them with some other public data. I will use calls for service...  Continue reading Weekly and monthly graphs for monitoring crime patterns (SPSS Statistics)