val.spear.create {ecoval}

Creates a Value Function for River Spear Index

Description

Creates a value function for the SPEARpesticides index in rivers.

Usage

val.spear.create(language     = "English",
                 dictionaries = NA,
                 col          = "black")

Arguments

language

Language to be used to denote nodes, attributes and attribute levels. Must be a column name of the table provided by the second argument.

dictionaries

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.

col

Color of bounding boxes in objectives hierarchy.

Value

The function returns the value function as a class utility.

References

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. doi: 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. doi: 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. doi: 10.1016/j.envsoft.2013.01.017

Reichert, P., Langhans, S., Lienert, J. and Schuwirth, N. The conceptual foundation of environmental decision support. Journal of Environmental Management. 154, 316-332, 2015. doi: 10.1016/j.jenvman.2015.01.053

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. doi: 10.1016/j.envsoft.2005.07.017

https://modul-stufen-konzept.ch

Beketov M.A., Foit K., Schafer R.B., Schriever C.A., Sacchi A., Capri E., Biggs J., Wells C. & Liess M. SPEAR indicates pesticide effects in streams - Comparative use of species- and family-level biomonitoring data. Environmental Pollution, 157, 1841-1848, 2009. doi: 10.1016/j.envpol.2009.01.021

See Also

utility.

Examples

spear <- val.spear.create()
plot(spear)
spear.german <- val.spear.create("Deutsch")
plot(spear.german)