quadtrafo function

Transforming of 4 dimensional values in a barycentric coordinate system.

quadtrafo(e, f = NULL, g = NULL, h = NULL)
        
quadlines(e, f = NULL, g = NULL, h = NULL, sp, ...)

quadpoints(e, f = NULL, g = NULL, h = NULL, sp, ...)

Arguments

• e: either a matrix with 4 columns represanting the membership values or a vector with the membership values of the first class
• f: vector with the membership values of the second class
• g: vector with the membership values of the third class
• h: vector with the membership values of the forth class
• sp: scatterplot3d object to which points or lines should be plotted
• ...: further arguments passed to the underlyind plot functions

Returns

For quadtrafo the 3 dimensional values in the barycentrix coordinate system.

Author(s)

Karsten Luebke, karsten.luebke@fom.de

See Also

triplot, quadplot

Examples

library(MASS)
data(B3)
posterior <- predict(lda(PHASEN ~ ., data = B3))$post
quadtrafo(posterior)