plot.cugtest {sna} | R Documentation

## Plotting for cugtest Objects

### Description

Plots the distribution of a CUG test statistic.

### Usage

    plot.cugtest(x, mode="density", ...)

### Arguments

`x` | A `cugtest` object
`mode` | ``density'' for kernel density estimation, ``hist'' for histogram
`...` | Additional arguments to `plot`

### Details

In addition to the quantiles associated with a CUG test, it is often useful to examine the form of the distribution of the test statistic. `plot.cugtest` facilitates this.

### Value

None

### Author(s)

Carter T. Butts buttsc@uci.edu

### References

Anderson, B.S.; Butts, C.T.; and Carley, K.M. (1999). ``The Interaction of Size and Density with Graph-Level Indices.'' Social Networks, 21(3), 239-267.

### See Also

`cugtest`

### Examples

    #Draw two random graphs, with different tie probabilities
    dat<-rgraph(20,2,tprob=c(0.2,0.8))

    #Is their correlation higher than would be expected, conditioning
    #only on size?
    cug<-cugtest(dat,gcor,cmode="order")
    summary(cug)
    plot(cug)

    #Now, let's try conditioning on density as well.
    cug<-cugtest(dat,gcor)
    plot(cug)

[Package sna version 1.1 Index]