R: von Mises Probability-Probability Plot

pp.plot {CircStats} | R Documentation

## von Mises Probability-Probability Plot

### Description

Plots the empirical distribution of a data set against the best fitting von Mises distribution function.

### Usage

    pp.plot(x, ref.line=TRUE)

### Arguments

`x` | vector of angular measurements in radians.
`ref.line` | logical flag: if TRUE a 45 degree reference line is added to the plot. Default is TRUE.

### Details

The maximum likelihood estimates of the parameters of the von Mises distribution are computed from the given data set. The empirical distribution function is plotted against a von Mises distribution function with parameters given by the MLEs computed.

### Value

NULL

### Note

A plot is created on the current graphics device.

### References

Jammalamadaka, S. Rao and SenGupta, A. (2001). Topics in Circular Statistics, Section 10.2, World Scientific Press, Singapore.

### See Also

vm.ml

### Examples

    data <- rvm(25, 0, 3)
    pp.plot(data)
    data <- c(rvm(20, 0, 7), rvm(20, pi, 7))
    pp.plot(data)

[Package CircStats version 0.2-4 Index]