Creates a value function for ecological river assessment based on physical, chemical and biological sub-objectives.
ecoval.river.create(phys = list(msk.morphol.1998.create,
msk.physapp.2007.create),
physagg = "utility.aggregate.addmin",
physpar = numeric(0),
chem = list(msk.nutrients.2010.create,
val.micropoll.create,
val.heavymetals.create),
chemagg = "utility.aggregate.addmin",
chempar = numeric(0),
biol = list(msk.diatoms.2007.create,
val.invertebrates.create,
msk.fish.2004.create),
biolagg = "utility.aggregate.addmin",
biolpar = numeric(0),
ecolagg = "utility.aggregate.addmin",
ecolpar = numeric(0),
language = "English",
dictionaries = NA,
col = "black")List containing either functions to create branches of the value function
or already branches of value functions corresponding to physical sub-objectives.
These branches (produced by the function or given directly) must be in the form
of a value function definition as provided by the package utility.
Name of the function to be used for aggregating the value function branches
specified in the argument phys.
Vector of parameters (often weights) provided to the aggregation function
(provided by the argument physagg).
List containing either functions to create branches of the value function
or already branches of value functions corresponding to chemical sub-objectives.
These branches (produced by the function or given directly) must be in the form
of a value function definition as provided by the package utility.
Name of the function to be used for aggregating the value function branches
specified in the argument chem.
Vector of parameters (often weights) provided to the aggregation function
(provided by the argument chemagg).
List containing either functions to create branches of the value function
or already branches of value functions corresponding to biological sub-objectives.
These branches (produced by the function or given directly) must be in the form
of a value function definition as provided by the package utility.
Name of the function to be used for aggregating the value function branches
specified in the argument biol.
Vector of parameters (often weights) provided to the aggregation function
(provided by the argument biolagg).
Name of the function to be used to aggregate the physical, chemical, and biological values.
Parameter vector passed to the function specified under ecolpar.
Language to be used to denote nodes, attributes and attribute levels. Must be a column name of the table provided by the second argument.
Matrix of dictionaries with the languages provided by the column names and the original words provided as the row names.
If dictionary is NA, the default dictionary ecoval.dictionaries.default is loaded.
Color of bounding boxes in objectives hierarchy.
The function returns the value function as a class utility.
Langhans, S.D., Lienert, J., Schuwirth, N. and Reichert, P. How to make river assessments comparable: A demonstration for hydromorphology, Ecological Indicators 32, 264-275, 2013. 10.1016/j.ecolind.2013.03.027 Langhans, S.D., Reichert, P. and Schuwirth, N. The method matters: indicator aggregation in ecological river assessment. Ecological Indicators 45, 494-507, 2014. 10.1016/j.ecolind.2014.05.014 Reichert, P., Schuwirth, N. and Langhans, S. Constructing, evaluating and visualizing value and utility functions for decision support, Environmental Modelling & Software 46, 283-291, 2013. 10.1016/j.envsoft.2013.01.017 Reichert, P., Borsuk, M., Hostmann, M., Schweizer, S., Sporri, C., Tockner, K. and Truffer, B. Concepts of decision support for river rehabilitation, Environmental Modelling and Software 22, 188-201, 2007. 10.1016/j.envsoft.2005.07.017 https://modul-stufen-konzept.ch
# NOT RUN {
ecol <- ecoval.river.create()
plot(ecol)
ecol.german <- ecoval.river.create(language="Deutsch")
plot(ecol.german)
# }
Run the code above in your browser using DataLab