applyDAR: Apply two version of Drainage Area Ratio

In wfarmer-usgs/PUBAD: Appliles and Analyzes Several Methods for Prediction in Ungaged Basins

Description

The function applyDAR conducts a cross-validated evaluation of nearest-neighbor and map-correlation drainage area ratio.

Usage

applyDAR(listofgages, startDate, endDate, limWY = 1, limDAR = c(-Inf, Inf),
  cv = list(fold = NA, dense = TRUE), flowStat = FALSE)

Arguments

listofgages	A dataframe of sites to be used for analysis. Sites are character strings with at least 8 numeric characters.
startDate	Specifies a particular date from which to begin retrieving the streamflow data. Format should be "YYYY-MM-DD". If blank, all available data will be retrieved.
endDate	Specifies a particular date up to which to retrieve the streamflow data. Format should be "YYYY-MM-DD". If blank, all available data will be retrieved.
limWY	(optional) The minimum number of water years required for a site to be included. The default is 1.
limDAR	(optional) A numeric vector with two elements, indicating the minimum and maximum drainage area ratio to be allowed for the applicaiton of drainage area ratio. The default is c(-Inf,Inf).
cv	(optional) A list of two elements defining the parameters of cross validation. foldAn integer indicating how many folds should be used for evaluation. The default, NA or 1, requests a leave-one-out analysis. denseA logical value indicating if the smaller or larger half of the cross-validation fold should be used as the index. The defulat, TRUE, calls for the dense scenario using the larger half of the fold as the index network.
flowStat	(optional) A logical indicating if the streamflow statistics should be evaluated. This will increase run time. The default is FALSE.

Details

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Value

A list of two elements:

cvList	Corss-validated estiamted and observed streamflows.
anList	basic analysis of estiamted streamflows.

wfarmer-usgs/PUBAD documentation built on May 4, 2019, 5:21 a.m.