clean_BCs: Clean out raw basin characteristics.

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

Description

The function clean_BCs cleans the raw basin characteristics by removing unnecessary or not-useful variables.

Usage

clean_BCs(BCs, BC.code6.remflg = F, max.BC.oneval.frac = 0.5, BC_suffix,
  destination = "", keepWB = F)

Arguments

BCs	A data frame of basin characteristics from winnow_BCs.
BC.code6.remflg	(optional) A logical flag that indicates whether or not variables derived from a non-calibrated hydrologic model will be removed. The default, FALSE requests that these be retained.
max.BC.oneval.frac	(optional) A constant between 0 and 1, such that if at least that fraction of the BC values has a single value (usually zero) then the BC will be removed. The default is 0.5.
BC_suffix	(optional) A character string appending certain condition onto saved file names.
destination	(optional) A character string specfying a file name, without an extension, to which to write intermediate results. The default is not to save results.
keepWB	(optional) A logical flag that indicates whether or not Water Balance model variables, named "WB5100...", are kept even if a large fraction of the values are the same in order to later compute their phase. The default, FALSE requests that these not be retained.

Details

"Cleans" basin characteristics (BCs) by:

• 1.

  Removing BCs that are cannot be used because they are non-numeric or, according to current thinking, should not be used because they:

  • a)measure hydrologic modifications such as dams or land development

  • b)use NHD or TIGER roads which are spatially non-uniform in their "resolution"

  • c)use measured streamflow (e.g, kriged streamflow statistics or calibrated model output)

  • d)optionally, BCs based on non-calibrated hydrologic models

• 2.Removing BCs that have a large fraction, whose value is given by max.BC.oneval.frac,of values that are the same.

Value

A matrix of basin characteristics, with several removed.

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