FD.ternaryplot {FlexDir} | R Documentation |
Ternary Plot of a Flexible Dirichlet
Description
Ternary plot and contour lines of the density function of a fitted Flexible Dirichlet distribution.
Usage
FD.ternaryplot(x, zoomed = T, showgrid = T, showdata = T, nlevels = 10)
Arguments
x |
an object of class FDfitted, usually the result of |
zoomed |
if |
showgrid |
if |
showdata |
if |
nlevels |
approximate number of contour lines to be drawn. |
Details
The number of variables in the fitted model must be 3 to draw a ternary plot.
References
Ongaro, A. and Migliorati, S. (2013) A generalization of the Dirichlet distribution. Journal of Multivariate Analysis, 114, 412–426.
Migliorati, S., Ongaro, A. and Monti, G. S. (2016) A structured Dirichlet mixture model for compositional data: inferential and applicative issues. Statistics and Computing, doi:10.1007/s11222-016-9665-y.
See Also
FD.estimation
, FD.rightplot
, FD.marginalplot
Examples
data <- FD.generate(n=20,a=c(12,7,15),p=c(0.3,0.4,0.3),t=8)
data
results <- FD.estimation(data, normalize=TRUE,iter.initial.SEM = 5,iter.final.EM = 10)
results
FD.ternaryplot(results)
FD.ternaryplot(results, zoomed=FALSE, showgrid=TRUE, showdata=FALSE, nlevels=3)