BCEA (version 2.2-3)

evi.plot: Expected Value of Information (EVI) plot

Description

Plots the Expected Value of Information (EVI) against the willingness to pay

Usage

evi.plot(he, graph=c("base","ggplot2"))

Arguments

he

A bcea object containing the results of the Bayesian modelling and the economic evaluation.

graph

A string used to select the graphical engine to use for plotting. Should (partial-)match the two options "base" or "ggplot2". Default value is "base".

Value

evi

A ggplot object containing the requested plot. Returned only if graph="ggplot2".

The function produces a plot of the Expected Value of Information as a function of the discrete grid approximation of the willingness to pay parameter. The break even point(s) (i.e. the point in which the EIB=0, ie when the optimal decision changes from one intervention to another) is(are) also showed.

References

Baio, G., Dawid, A. P. (2011). Probabilistic Sensitivity Analysis in Health Economics. Statistical Methods in Medical Research doi:10.1177/0962280211419832.

Baio G. (2012). Bayesian Methods in Health Economics. CRC/Chapman Hall, London

See Also

bcea, ceac.plot, ceplane.plot