search for: accuracy_and_precision

Displaying 1 result from an estimated 1 matches for "accuracy_and_precision".

2012 Mar 02
0
plotting standard deviation of multivariate normal distribution (preferred in rgl package)
Dear R colleagues, for a statistics tutorial I want to develop a nice 3d-graphic of the well known target comparison/analogy of accuracy and precision (see i.e. http://en.wikipedia.org/wiki/Accuracy_and_precision for a simple hand made 2d graphic). The code for a really beautiful graphic is already provided as demo(bivar) in the rgl package (for a picture see i.e http://rgl.neoscientists.org/gallery.shtml right upper corner). Now I'd like to add the standard deviation to the 3d plot. Unfortunately I c...