simpleEllipse: Hotelling's T^2 Ellipse
Description
Get a confidence ellipse for uncorrelated bivariate data
Usage
simpleEllipse(x, y, alfa = 0.95, len = 200)
Arguments
alfa
confidence level of the circle
len
Number of points in the circle
Value
A matrix with X and Y coordinates for the circle
Details
As described in 'Introduction to multi and megavariate data analysis
using PCA and
PLS' by Eriksson et al. This produces very similar ellipse as
compared to the ellipse function the ellipse package except that
this function assumes that and y are uncorrelated (which they of
are if they are scores or loadings from a PCA).