plot.surface {unknown} | R Documentation

## Contour plot of the estimated expected utility surface.

### Description

Draws a countour plot of the estimated expected utility for a fixed value of `b0`.

### Usage

    plot.surface(bgrid, u, b0, max = TRUE, textb0 = TRUE, xlab='b1', ylab='b2', ...)

### Arguments

`bgrid` | Grid with `b0`,`b1`,`b2` values as the element `"bgrid"` returned by `"read.forwsim"`.
`u` | Expected utility for each point in the grid.
`b0` | Only grid points with the indicated `b0` will be used for plotting.
`max` | If set to `TRUE` the point at which the maximum is achieved will be indicated with a square.
`textb0` | If `TRUE`, the value of `b0` will be added to the top right of the plot.
`xlab` | x-axis label as in `"contour"`.
`ylab` | y-axis label as in `"contour"`.
`...` | Optional arguments to `"contour"`.

### Value

No value returned, the function is used for its side effects.

### Author(s)

David Rossell

### See Also

`contour`

### Examples

    dir <- 'C:/R/R-2.2.1/library/forwsim/data'                              #read forward simulation output
    sim1 <- read.forwsim(dir)

    plot.surface(sim1$bgrid,sim1$u,sim1$b0[5],main='')                      #obtain contour plot for 5th b0 value

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