This function plots ellipses according to a covariance matrix
Usage
do.ellipses(acov, pos, ...)
Arguments
acov
the given covariance matrix
pos
the location of the ellipse
…
further graphical parameter for the ellipses
Details
The correlation matrix of the given covariance is computed and the resulting ellipse is plotted. The radi is computed with the singular value decomposition and the cos/sin is calculated for 100 different degrees.
References
C. Reimann, P. Filzmoser, R.G. Garrett, and R. Dutter: Statistical Data Analysis
Explained. Applied Environmental Statistics with R. John Wiley and Sons, Chichester, 2008.