R: Rao's Spacing Test of Uniformity

rao.spacing {CircStats} | R Documentation

## Rao's Spacing Test of Uniformity

### Description

Performs Rao's Spacing Test of uniformity.

### Usage

    rao.spacing(x, alpha=0, rad=TRUE)

### Arguments

`x` | numeric vector of angular data measured in degrees.
`alpha` | numeric value specifying the significance level of the test. The default value is 0, in which case, a range for the p-value will be returned. Valid significance levels are 0.10, 0.05, 0.01 and 0.001.
`rad` | logical value. If true, data will be assumed to be measured radians. If false, data will be assumed to be measured in degrees.

### Details

If alpha is specified, critical values are determined from a table of simulated critical points (see reference below). If alpha is not specified, a range for the p-value is determined using the table of simulated critical points.

### Value

NULL

### Note

The Rao's Spacing Test is performed, and the results are written to the screen.

### References

Jammalamadaka, S. Rao and SenGupta, A. (2001). Topics in Circular Statistics, Section 7.4, World Scientific Press, Singapore.

Rao, J.S. (1976). Some tests based on arc-lengths for the circle. Sankhya, The Indian Journal of Statistics, Serial B(4), 38, 329-338.

Russell, G.S. and Levitin, D.J. (1995). An expanded table of probability values for Rao's Spacing Test. Communications in Statistics - Simulation and Computation, 24, 4, 879-888.

### See Also

circ.range, kuiper, r.test, v0.test, watson

[Package CircStats version 0.2-4 Index]