plotNorm2 {prada} | R Documentation

## Plot fitted bivariate normal distribution.

### Description

Plots objects derived from function `fitNorm2` in false color represenation.

### Usage

    plotNorm2(fn, colrange=c("gray82", "blue"), center=TRUE, selection=FALSE,
                          ellipse=FALSE, pch=20, cex=1, col="dens", ...)

### Arguments

`fn` | List. Object derived from function `fitNorm2`
`colrange` | Character vector with valid color identifiers (eg name or RGB values) from which a smooth color palette is derived.
`center` | Logical. Assign center of distribution.
`selection` | Logical. Mark all points beyond selection.
`ellipse` | Logical. Plot area and borders of selection as ellipse.
`pch` | see `par`
`cex` | see `par`
`col` | see `par` or special cases `dens` for coloring according to density and `prob` for coloring according to probability.
`...` | further arguments that are passed on to `plot`.

### Details

Produces a scatterplot of paired data showing the densities of the fitted bivariate distribution from function `fitNorm` in false color representation. Additionally a selection of data points can be highlighted either by marking outliers or by showing its area.

### Value

A list containing items `p, cov, mu, S` (density values for each data pair, resulting object from call to cov.rob, midpoint of distribution, covariance matrix).

### Author(s)

Florian Hahne

### See Also

`fitNorm2`, `addEllipse`

### Examples

     sampdat <- readFCS(system.file("extdata",
       "fas-Bcl2-plate323-04-04.A01", package="prada"))
     nfit   <- fitNorm2(exprs(sampdat[,1:2]), scalefac=2)
     plotNorm2(nfit, selection=TRUE, ellipse=TRUE)

[Package prada version 1.10.1 Index]