Description Usage Arguments Details Value Author(s) See Also

Get a confidence ellipse for uncorrelated bivariate data

1 | ```
simpleEllipse(x, y, alfa = 0.95, len = 200)
``` |

`x` |
first variable |

`y` |
second variable |

`alfa` |
confidence level of the circle |

`len` |
Number of points in the circle |

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).

A matrix with X and Y coordinates for the circle

Henning Redestig

ellipse

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