R: Mean Resultant Length

est.rho {CircStats} | R Documentation

## Mean Resultant Length

### Description

Returns the mean resultant length of a vector of circular data.

### Usage

    est.rho(x)

### Arguments

`x` | vector of data points measured in radians.

### Details

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

### Value

Returns the mean resultant length of data.

### References

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

### See Also

circ.mean, circ.disp, circ.summary, est.kappa.

### Examples

    # Compute the mean resultant length of a random sample of observations.
    data <- runif(100, 0, 2*pi)
    est.rho(data)

[Package CircStats version 0.2-4 Index]