R: Summary plot of the health economic analysis when the mixed...
plot.mixedAn
R Documentation
Summary plot of the health economic analysis when the mixed analysis is considered
Description
Compares the optimal scenario to the mixed case in terms of the EVPI
Usage
## S3 method for class 'mixedAn'
plot(x, y.limits = NULL, pos=c(0,1), graph=c("base","ggplot2"), ...)
Arguments
x
An object of class mixedAn, given as output of the call to the function
mixedAn.
y.limits
Range of the y-axis for the graph. The default value is NULL, in which case the
maximum range between the optimal and the mixed analysis scenarios is considered.
pos
Parameter to set the position of the legend. Can be given in form of a string
(bottom|top)(right|left) for base graphics and bottom|top|left|right
for ggplot2. It can be a two-elements vector, which specifies the relative position on
the x and y axis respectively, or alternatively it can be in form of a logical
variable, with FALSE indicating to use the default position and TRUE to
place it on the bottom of the plot. Default value is c(0,1), that is in the
topleft corner inside the plot area.
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".
...
Arguments to be passed to methods, such as graphical parameters (see par).
Value
evi
A ggplot object containing the plot. Returned only if graph="ggplot2".
The function produces a graph showing the difference between the ”optimal” version of
the EVPI (when only the most cost-effective intervention is included in the market) and
the mixed strategy one (when more than one intervention is considered in the market).
Author(s)
Gianluca Baio, Andrea Berardi
References
Baio, G. and Russo, P. (2009).A decision-theoretic framework for the application of cost-effectiveness analysis in regulatory processes. Pharmacoeconomics 27(8), 645-655
doi:10.2165/11310250
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,
mixedAn
Examples
# See Baio G., Dawid A.P. (2011) for a detailed description of the
# Bayesian model and economic problem
#
# Load the processed results of the MCMC simulation model
data(Vaccine)
#
# Runs the health economic evaluation using BCEA
m <- bcea(e=e,c=c, # defines the variables of
# effectiveness and cost
ref=2, # selects the 2nd row of (e,c)
# as containing the reference intervention
interventions=treats, # defines the labels to be associated
# with each intervention
Kmax=50000, # maximum value possible for the willingness
# to pay threshold; implies that k is chosen
# in a grid from the interval (0,Kmax)
plot=FALSE # inhibits graphical output
)
#
ma <- mixedAn(m, # uses the results of the mixed strategy
# analysis (a "mixedAn" object)
mkt.shares=NULL # the vector of market shares can be defined
# externally. If NULL, then each of the T
# interventions will have 1/T market share
)
#
# Can also plot the summary graph
plot(ma,graph="base")
#
# Or with ggplot2
if(require(ggplot2)){
plot(ma,graph="ggplot2")
}
Results
R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)
R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.
R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.
Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.
> library(BCEA)
> png(filename="/home/ddbj/snapshot/RGM3/R_CC/result/BCEA/plot.mixedAn.Rd_%03d_medium.png", width=480, height=480)
> ### Name: plot.mixedAn
> ### Title: Summary plot of the health economic analysis when the mixed
> ### analysis is considered
> ### Aliases: plot.mixedAn
> ### Keywords: Health economic evaluation Mixed analysis
>
> ### ** Examples
>
> # See Baio G., Dawid A.P. (2011) for a detailed description of the
> # Bayesian model and economic problem
> #
> # Load the processed results of the MCMC simulation model
> data(Vaccine)
> #
> # Runs the health economic evaluation using BCEA
> m <- bcea(e=e,c=c, # defines the variables of
+ # effectiveness and cost
+ ref=2, # selects the 2nd row of (e,c)
+ # as containing the reference intervention
+ interventions=treats, # defines the labels to be associated
+ # with each intervention
+ Kmax=50000, # maximum value possible for the willingness
+ # to pay threshold; implies that k is chosen
+ # in a grid from the interval (0,Kmax)
+ plot=FALSE # inhibits graphical output
+ )
> #
> ma <- mixedAn(m, # uses the results of the mixed strategy
+ # analysis (a "mixedAn" object)
+ mkt.shares=NULL # the vector of market shares can be defined
+ # externally. If NULL, then each of the T
+ # interventions will have 1/T market share
+ )
> #
> # Can also plot the summary graph
> plot(ma,graph="base")
> #
> # Or with ggplot2
> if(require(ggplot2)){
+ plot(ma,graph="ggplot2")
+ }
Loading required package: ggplot2
>
>
>
>
>
> dev.off()
null device
1
>