Angle

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Description

The R internal function angle is used to draw ellipses around points in graphical displays.

Details

This function is used in two other functions that are caellipse and nscaellipse.

References

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).