StaTips Part I: Choosing statistical test when dealing with differences

Statistics made simple. Part 4. Choosing the right statistical test.

Correction In the July/August edition of Paediatric Nursing (16, 6, 36) author details for Linda Shields should have been included This is one of a series of short papers on aspects of research by Alison Twycross and Linda Shields A previous paper in this series explained some statistical terms and why carrying out statistical tests is important. It also highlighted some of the issues to consid...

Part I STATISTICAL PHYSICS

Contradiction: When Avoidance Equals Removal - Part I

Recently several authors have stressed and illustrated the importance of including a second kind of negation (explicit negation) in logic programs besides \negation as failure", and its use in deductive databases, knowledge representation, and nonmonotonic reasoning. By introducing explicit negation into logic programs contradiction may appear. In this work we present two approaches for dealing...

Statistical relevance--relevant statistics, part I.

S tatistical analysis is an important tool in experimental research and is essential for the reliable interpretation of experimental results. It is essential that statistical design should be considered at the very beginning of a research project, not merely as an afterthought. For example if the sample size for an experiment only allows for an underpowered statistical analysis, then the interp...

A multiagent urban traffic simulation Part I: dealing with the ordinary

We describe in this article a multiagent urban traffic simulation, as we believe individual-based modeling is necessary to encompass the complex influence the actions of an individual vehicle can have on the overall flow of vehicles. We first describe how we build a graph description of the network from purely geometric data, ESRI shapefiles. We then explain how we include traffic related data ...