A vignette typically describes a hypothetical situation or object which respondents are asked to judge. The object is described as having different dimensions, the values of which are experimentally varied, so that their impact on respondents’ judgments can be estimated. We examine 1) whether the order in which dimensions are presented impacts estimates, and 2) under which conditions order effe...

The R package surveillance provides tools for the visualization, modelling and monitoring of epidemic phenomena. This vignette is concerned with the hhh4 modelling framework for univariate and multivariate time series of infectious disease counts proposed by Held et al. (2005), and further extended by Paul et al. (2008), Paul and Held (2011), Held and Paul (2012), and Meyer and Held (2014). The...

Recent work by Lin, Lipsitz, Sinha, Gawande, Regenbogen, and Greenberg proposed a Bayesian analysis of a 2× 2 table including incompletely classified data. Here, we subject the same dataset to further analysis using recently developed techniques and software written in the R programming language. This vignette is based on a manuscript submitted to the Journal of the Royal Statistical Society Se...

AIMS AND METHOD The aim of the study was to investigate whether psychiatrists consider that patients with schizophrenia present a greater risk of violence than patients with other forms of mental illness. Two pairs of clinical vignettes were devised. In each pair, one contained a history of violence and one did not. One vignette was mailed to each of 2000 consultant psychiatrists in the UK. Res...

AIMS AND METHOD The aim of the study was to investigate whether psychiatrists consider that patients with schizophrenia present a greater risk of violence than patients with other forms of mental illness. Two pairs of clinical vignettes were devised. In each pair, one contained a history of violence and one did not. One vignette was mailed to each of 2000 consultant psychiatrists in the UK. Res...

This vignette describes the new reimplementation of conditional inference trees (CTree) in the R package partykit. CTree is a non-parametric class of regression trees embedding tree-structured regression models into a well defined theory of conditional inference procedures. It is applicable to all kinds of regression problems, including nominal, ordinal, numeric, censored as well as multivariat...

In the following vignette we demonstrate the use of point-of-care ultrasound to diagnose a simple ranula.