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Lifecycle: stable Maintenance

The baytrends package was developed to enable users to evaluate long-term trends in the Chesapeake Bay using a Generalized Additive Modeling (GAM) approach. The model development includes selecting a GAM structure to describe nonlinear seasonally-varying changes over time, incorporation of hydrologic variability via either a river flow or salinity, the use of an intervention to deal with method or laboratory changes suspected to impact data values, and representation of left- and interval-censored data. This approach, which is fully transferable to other systems, allows for Chesapeake Bay water quality data to be evaluated in a statistically rigorous, yet flexible way to provide insights to a range of management- and research-focused questions.


You can install the released version of baytrends from CRAN with:


And the development version (with vignettes) from GitHub with:

# install.packages("devtools")

if(!require(devtools)){install.packages("devtools")}  #install if needed
install_github("leppott/BioMonTools", force=TRUE, build_vignettes=TRUE)