fit_slopebreak: Slope Break Fit for WSE-w Relationship

In jschap1/WSEw: River Geometry Package for Studying Water Surface Elevation-Width Relationships

Description

Fits any of several types of "slope break" fits to WSE-w data

Usage

fit_slopebreak(WSEw, mersel = FALSE, thres = 0.015, window = 4,
  multiple_breaks = FALSE, continuity = TRUE, minlen = 5)

Arguments

WSEw	WSEw data (at a given level of exposure)
mersel	flag for Mersel method
thres	threshold for Mersel method, must be provided if using Mersel method. 0.015 has been used in the past.
multiple_breaks	one slope break or multiple slope breaks
continuity	require continuity between piecewise fits?
minlen	minimum segment length for breakpoints(). Default is 5.
thres	moving average window for Mersel method, must be provided if using Mersel method. Default value is 4.

Details

# if no slope breaks are identified, it just fits a single linear model Can do the following types of fits 1. Linear with one breakpoint, continuous 2. Linear with one breakpoint, noncontinuous 3. Linear with several breakpoints, continous 4. Linear with several breakpoints, noncontinuous (returns just the lowest fit) 5. Mersel method: linear with one breakpoint, noncontinous, screens out "non-optimal" cross sections (returns just the lowest fit) See attributes(fit)$ef for error flags. Value 0 means no error, 1 means not enough data points

jschap1/WSEw documentation built on May 12, 2019, 10:50 a.m.