R: Stress

stress {ggm} | R Documentation

## Stress

### Description

Stress data

### Usage

    data(stress)

### Format

A 4 \times 4 covariance matrix for the following variables.

Y
V
X
U

### Details

See Cox and Wermuth (1996).

### References

Cox, D. R. \& Wermuth, N. (1996). Multivariate dependencies. London: Chapman \& Hall.

Slangen K., Kleemann P.P and Krohne H.W. (1993). Coping with surgical stress. In: Krohne H. W. (ed.). Attention and avoidance: Strategies in coping with aversiveness. New York, Heidelberg: Springer, 321-346.

### Examples

    data(stress)
    G = UG(~ Y*X + X*V + V*U + U*Y)
    fitConGraph(G, stress, 100)

[Package ggm version 2.3 Index]