Package: baytrends 2.0.12

Erik W Leppo

baytrends: Long Term Water Quality Trend Analysis

Enable users to evaluate long-term trends 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. The approach has been applied to water quality data in the Chesapeake Bay, a major estuary on the east coast of the United States to provide insights to a range of management- and research-focused questions. Methodology described in Murphy (2019) <doi:10.1016/j.envsoft.2019.03.027>.

Authors:Rebecca Murphy, Elgin Perry, Jennifer Keisman, Jon Harcum, Erik W Leppo

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Bug tracker:https://github.com/tetratech/baytrends/issues

On CRAN:

63 exports 12 stars 1.88 score 61 dependencies 97 scripts 599 downloads

Last updated 2 months agofrom:884b96c5ef. Checks:OK: 7. Indexed: yes.

Exports:.checkRange.chkParameter.ExpLNmCens.ExpNmCens.F.findFile.fmtPval.gamANOVA.gamCoeff.gamDiffPORtbl.gamPlotCalc.H.H1.H2.H3.H4.H5.initializeResults.mergeFlow.mergeSalinity.P.reAttDF.T.V.vTableanalysisOrganizeDataappendDateFeaturesbaseDaybaseDay2decimalcloseOutcreateResidualsdectimedectime2Datedetrended.flowdetrended.salinityeventLeneventNumeventSeqfillMissingfilterWgtsflwAveragePredgamDiffgamPlotDispgamPlotDispSeasongamTestgamTestSeasongetUSGSflowimputeimputeDFlayerAggregationloadDataloadExcelloadModelsloadModelsResidmakeSurvDFmiss2nana2missnobssaveDFseasAdjflowselectDataunSurvunSurvDF

Dependencies:askpassbitbit64cachemcellrangerclicliprcpp11crayoncurldataRetrievaldigestdplyrevaluatefansifastmapfitdistrplusgenericsgluehighrhmshttrjsonliteknitrlatticelifecyclelubridatemagrittrMASSMatrixmemoisemgcvmimenlmeopensslpanderpillarpkgconfigplyrprettyunitsprogressR6Rcppreadrreadxlrematchrlangsessioninfosurvivalsystibbletidyselecttimechangetzdbutf8vctrsvroomwithrxfunxml2yaml