Estimated mortality during rock blasting operations.

Guidance on use of CBR software can be requested by emailing web@cbr.washington.edu — we are happy to answer questions on our software.

Active Tag-Life-Adjusted Survival

Program ATLAS allows investigators to interactively model data from a tag-life study to produce a tag-life curve. The resulting failure time model is then used to produce bias adjusted estimates of survival for single-release, paired-release, and virtual/paired-release recapture designs.

A version of Program ATLAS for use within the R environment can be found on the cbrATLAS page.

Survival Under Proportional Hazards

SURPH is an analytical tool for estimating survival using release-recapture data as a function of environmental and experimental effects. These effects may apply to a population (such as ambient temperature) or an individual (such as body length). SURPH provides flexible modeling capability for selecting the most parsimonious models, and diagnostic reports and graphs for analysing data and selected models. Hypothesis testing can be done with Likelihood Ratio Test, AIC, or Analysis of Deviance.