plot.evppi: Plot Expected Value of Partial Information With Respect to a...

In BCEA: Bayesian Cost Effectiveness Analysis

Plot Expected Value of Partial Information With Respect to a Set of Parameters

Description

Plot Expected Value of Partial Information With Respect to a Set of Parameters

Usage

## S3 method for class 'evppi'
plot(x, pos = c(0, 0.8), graph = c("base", "ggplot2"), col = c(1, 1), ...)

Arguments

x	An object in the class evppi, obtained by the call to the function evppi().
pos	Parameter to set the position of the legend (only relevant for multiple interventions, ie more than 2 interventions being compared). 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.
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".
col	Sets the colour for the lines depicted in the graph.
...	Arguments to be passed to methods, such as graphical parameters (see par()).

Value

Plot with base R or ggplot2.

Author(s)

Gianluca Baio, Andrea Berardi

References

\insertRef

Baio2013BCEA

See Also

bcea(), evppi()

Examples

## Not run: 
data(Vaccine, package = "BCEA")
treats <- c("Status quo", "Vaccination")

# Run the health economic evaluation using BCEA
m <- bcea(e.pts, c.pts, ref = 2, interventions = treats)

# Compute the EVPPI for a bunch of parameters
inp <- createInputs(vaccine_mat)

# Compute the EVPPI using INLA/SPDE
if (require("INLA")) {
  x0 <- evppi(m, c("beta.1." , "beta.2."), input = inp$mat)
  
  plot(x0, pos = c(0,1))

  x1 <- evppi(m, c(32,48,49), input = inp$mat)
  plot(x1, pos = "topright")

  plot(x0, col = c("black", "red"), pos = "topright")
  plot(x0, col = c(2,3), pos = "bottomright")

  plot(x0, pos = c(0,1), graph = "ggplot2")
  plot(x1, pos = "top", graph = "ggplot2")

  plot(x0, col = c("black", "red"), pos = "right", graph = "ggplot2")
  plot(x0, col = c(2,3), size = c(1,2), pos = "bottom", graph = "ggplot2")

  plot(x0, graph = "ggplot2", theme = ggplot2::theme_linedraw())
}

if (FALSE)
 plot(x0, col = 3, pos = "topright")
# The vector 'col' must have the number of elements for an EVPI
# colour and each of the EVPPI parameters. Forced to black

## End(Not run)

BCEA documentation built on June 22, 2024, 11:08 a.m.