ecoval.plotsymbols: Plot valuations of different sub-objectives as pie charts.

In ecoval: Procedures for Ecological Assessment of Surface Waters

Description

A function to add a plot with valuations of different sub-objectives as a pie chart to an existing plot e.g. with the river network.

Usage

ecoval.plotsymbols(nodes,x,y,r,u,
                   square     = F,
                   labels     = NA,
                   col        = utility.calc.colors(),
                   pos.legend = NA,
                   cex.nodes  = 1)

Arguments

nodes	Nodes of a value function, which should be plotted as pie chart.
x	Vector with x-coordinates for the pie charts.
y	Vector with y-coordinates for the pie charts.
r	Radius of the pie chart.
u	Dataframe or matrix with values between 0 and 1 corresponding to the valuation of the nodes with rows for the different pie charts and columns for each node. The column names have to be identical to the nodes.
square	Logical value, if true the diagram is plotted as square, if false as pie chart.
labels	Labels for the pie charts that are plotted close to the chart.
col	Colour-coding that transforms the numerical values of u into a color. Default is a plot-function from the utility package "utility.calc.colors()" with the following color-classes: 0-0.2 red, 0.2-0.4 orange, 0.4-0.6 yellow, 0.6-0.8 green, 0.8-1 blue.
pos.legend	Vector with x and y-coordinates of the legend.
cex.nodes	A numerical value giving the amount by which plotting text of the legend and the labels should be magnified relative to the default.

References

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

Baumann P., Langhans S.D. Methoden zur Untersuchung und Beurteilung der Fliessgewaesser. Synthese der Beurteilungen auf Stufe F (flaechendeckend). Umwelt-Vollzug Nr. Bundesamt fuer Umwelt, Bern: 47 S.

https://modul-stufen-konzept.ch

See Also

utility, rivernet.

Examples

plot(1, type="n",axes=FALSE,ann=FALSE,xlim=c(0, 10),ylim=c(0, 10))
u1 <- matrix(data=c(0.1,0.5,1,0.3,0.4,0.7),nrow=2,
             dimnames=list(c(NA,NA),c("morphology","hydrology","nutrients")))

ecoval.plotsymbols(nodes      = c("morphology","hydrology","nutrients"),
                   x          = c(1,2),
                   y          = c(7,8.5),
                   r          = 0.5,
                   u          = u1,
                   col        = utility.calc.colors(),
                   pos.legend = c(7,8.5),
                   cex.nodes  = 1)

u2 <- matrix(data=c(0.1,0.25,0.75,0.6),nrow=1,
             dimnames=list(NA,c("fish","algae","invertebrates","macrophytes")))

ecoval.plotsymbols(nodes      = c("fish","algae","invertebrates","macrophytes"),
                   x          = 1.5,
                   y          = 3,
                   r          = 0.5,
                   u          = u2,
                   square     = TRUE,
                   col        = utility.calc.colors(),
                   pos.legend = c(7,3),
                   cex.nodes  = 1)

Example output

Loading required package: utility
Loading required package: rivernet

ecoval documentation built on Dec. 11, 2021, 9:40 a.m.