cutEachCol

xdata

The number of unordered observations represented by a string in <code>xdata</code>. For example, for genotypic data from diploid individual, $ploidy = 2$ : a data such as "ab" represents <code>{"a", "b"}</code> observed alleles.

ploidy


It is assumed that each string in the data frame submitted represents a set of $ploidy$ unordered observations from the same set of levels. For example, for $ploidy = 2$, the data "101102" represents "101", "102".


Genotype data

An implementation of a variable selection procedure in clustering by mixture models for discrete data (clustMMDD). Genotype data are examples of such data with two unordered observations (alleles) at each locus for diploid individual. The two-fold problem of variable selection and clustering is seen as a model selection problem where competing models are characterized by the number of clusters K, and the subset S of clustering variables. Competing models are compared by penalized maximum likelihood criteria. We considered asymptotic criteria such as Akaike and Bayesian Information criteria, and a family of penalized criteria with penalty function to be data driven calibrated.

cutEachCol: Retrieve data from strings in the dataset.

Description

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See Also

Examples