Description Details References

The R internal function `angle`

is used to draw ellipses around points in graphical displays.

This function is used in two other functions that are `caellipse`

and `nscaellipse`

.

Macdonald PDM 2002 Drawing an ellipse in Splus or R.

Available at www.math.mcmaster.ca/peter/s4m03/s4m03_0102/ellipse.html (accessed August 18, 2016).

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