SURPH (Survival Under Proportional Hazards) 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 analyzing data and selected models. Hypothesis testing can be done with Likelihood Ratio Test, AIC, or Analysis of Deviance.
Guidance on use of CBR software is provided in the training videos and user's manual. Individual assistance can be requested by emailing web@cbr.washington.edu — we are happy to answer questions on our software.
Note: The SURPH manual was tested for screen-reading accessibility using NVDA, which can be found at the NVDA Download Page. It is recommended that users set speech to read "most" punctuation/symbol levels with this manual, as this level functions best for the mathematical equations detailed within.
