| ExcessMass {ExcessMass} | R Documentation |
Excess Mass Calculation and Plots
Description
Implementation of a function which calculates the empirical excess mass for a given \lambda and given maximal number of modes (excessm). Offering powerful plot features to visualize empirical excess mass (exmsilhouette). This includes the possibility of drawing several plots (with different maximal number of modes / cut off values) in a single graph. Furthermore, plotting the empirical excess mass against lambda is implemented (exmplot).
Details
| Package: | ExcessMass |
| Type: | Package |
| Version: | 1.0.1 |
| Date: | 2017-05-17 |
| License: | GPL |
Author(s)
Marc-Daniel Mildenberger mildenberger.stat@web.de, based on earlier code from Dr. Guenther Sawitzki gs@statlab.uni-heidelberg.de
References
Muller, D. W. and Sawitzki, G., 09.1991, "Excess Mass Estimates and Tests for Multimodality", Journal of the American Statistical Association , Vol. 86, No. 415, pp. 738–746, http://www.jstor.org/stable/2290406
Muller, D. W., 12.1992, "The Excess Mass Approach in Statistics", Beitraege zur Statistik – StatLab Heidelberg, http://archiv.ub.uni-heidelberg.de/volltextserver/21357/
Examples
library(MASS)
attach(geyser)
excessm(duration, lambda=0.2)
x <- rnorm(1000)
exmsilhouette(x, M=2, CutOff=0.5)
mexmsilhouette(duration, CutOff=c(1,2), steps=60)