R: Circular Summary Statistics

summary.circular {circular} | R Documentation

## Circular Summary Statistics

### Description

Computes circular summary statistics including the sample size, mean direction and mean resultant length and quartiles.

### Usage

    ## S3 method for class 'circular'
    summary(object,
       digits = max(3, getOption("digits") - 3), ...)

### Arguments

`object` | an object of class `circular`.
`digits` | digits to be used in printing.
`...` | parameters passed to `summary.matrix` if needed.

### Details

Each observation is treated as a unit vector or a point on the unit circle. The resultant vector of the observations is found, and the direction of the resultant vector is returned as well as its length divided by the sample size.

### Value

Returns a vector with the sample size, the sample mean direction and the sample mean resultant length.

### Author(s)

Claudio Agostinelli, David Andel and Alessandro Gagliardi

### References

Jammalamadaka, S. Rao and SenGupta, A. (2001). Topics in Circular Statistics, Section 1.3, World Scientific Press, Singapore.

### See Also

`mean.circular`, `median.circular`, `quantile.circular`, `var.circular`, `mle.vonmises`, `rho.circular`.

### Examples

    # Compute summary statistics of a random sample of observations.
    data <- circular(runif(50, 0, pi))
    summary(data)
    summary(data.frame(data, runif(50, 0, pi)))

[Package circular version 0.4-93 Index]