param-ns-structures

internal

Tools to support systematic and reproducible workflows for both
stationary and nonstationary flood frequency analysis, with applications
extending to other hydroclimate extremes, such as precipitation frequency
analysis. This package implements the FFA framework proposed by Vidrio-
Sahagún et al. (2024) <doi:10.1016/j.envsoft.2024.105940>, originally
developed in 'MATLAB', now adapted for the 'R' environment. This work was
funded by the Flood Hazard Identification and Mapping Program of Environment
and Climate Change Canada, as well as the Canada Research Chair (Tier 1)
awarded to Dr. Pietroniro.

Riley Wheadon

ffaframework

Flood Frequency Analysis Framework

Cuauhtémoc Vidrio-Sahagún

Alain Pietroniro

Jianxun He

Environment and Climate Change Canada (ECCC) 

param-ns-structures function

<dl><dt>ns_structures</dt>
<dd>For S-FFA, set to <code>NULL</code> (default) to use a stationary model
for all homogeneous subperiods. For NS-FFA, provide a list of <code>length(ns_splits) + 1</code>
sublists specifying the nonstationary model structure for each homogeneous subperiod.
Each sublist must contain logical elements <code>location</code> and <code>scale</code>, indicating
monotonic trends in the mean and variability, respectively.</dd></dl>

Arguments

Parameter 'ns_structures' — param-ns-structures

<dl>

<dt>ns_structures</dt>
<dd>For S-FFA, set to <code>NULL</code> (default) to use a stationary model
for all homogeneous subperiods. For NS-FFA, provide a list of <code>length(ns_splits) + 1</code>
sublists specifying the nonstationary model structure for each homogeneous subperiod.
Each sublist must contain logical elements <code>location</code> and <code>scale</code>, indicating
monotonic trends in the mean and variability, respectively.</dd>

</dl>

Parameter 'ns_structures'

param-ns-structures: Parameter 'ns_structures'

Description

Arguments