multimode: An R Package for Mode Assessment

multimode: An R Package for Mode Assessment

multimodality, critical bandwidth, excess mass, bootstrap test

In several applied fields, multimodality assessment is a crucial task as a previous
exploratory tool or for determining the suitability of certain distributions. The goal of
this paper is to present the utilities of the R package multimode, which collects different
exploratory and testing non-parametric approaches for determining the number of modes
and their estimated location. Specifically, some graphical tools (SiZer map, mode tree
or mode forest) are provided, allowing for the identification of mode patterns, based
on the kernel density estimation. Several formal testing procedures for determining the
number of modes are described in this paper and implemented in the multimode package,
including methods based on the ideas of the critical bandwidth, the excess mass or using
a combination of both. This package also includes a function for estimating the modes
locations and different classical data examples that have been considered in mode testing
literature

Jose Ameijeiras-Alonso

https://www.jstatsoft.org/article/view/v097i09

Universidade de Santiago
de Compostela

Januari 2021

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