createsrch: Create a grid of half-window widths to evaluate

In WRTDStidal: Weighted Regression for Water Quality Evaluation in Tidal Waters

Create a grid of half-window widths to evaluate

Description

Create a grid of all unique combinations of half-window widths to evaluate. The result can be passed to winsrch_grid.

Usage

createsrch(
  mos = c(seq(0.5, 1, by = 0.25), 2, 10),
  yrs = c(seq(5, 15, by = 3), 50),
  flo = c(seq(0.5, 1, by = 0.1), 5)
)

Arguments

mos	numeric vector of half-window widths for months, a value of one indicates twelve months
yrs	numeric vector of half-window widths for years, a value of one indicates one-year
flo	numeric vector of half-window widths for salinity or flow, a value of one indicates the full range of values (100 percent)

Details

The weighting function uses a tri-cube weighting scheme such that weights diminish with distance from the center of the window. For example, a value of one for the month window does not mean that all months are weighted equally even though the window covers an entire calendar year.

Value

A matrix with number of rows equal to the product of the lengths of each input vector, where each row is a unique combination for the selected half-window widths.

See Also

winsrch_grid

Examples

createsrch()
createsrch(1, 1, 1)

WRTDStidal documentation built on Oct. 20, 2023, 5:08 p.m.