obsinfo: Classifiability of observations
In CMA: Synthesis of microarray-based classification

Description Arguments Details Value Author(s) References See Also

Some observations are harder to classify than others. It is frequently of interest to know which observations are consistenly misclassified; these are candiates for outliers or wrong class labels.

`object`	An object of class `evaluation`, generated with `scheme = "observationwise"`
`threshold`	threshold value of (observation-wise) performance measure, s. `evaluation` that has to be exceeded in order to speak of consistent misclassification. If `measure = "average probability"`, then values below `threshold` are regarded as consistent misclassification. Note that the default values 1 is not sensible in that case
`show`	Should the information be printed ? Default is `TRUE`.

As not all observation must have been classified at least once, observations not classified at all are also shown.

A list with two components

`misclassification`	A `data.frame` containing the indices of consistenly misclassfied observations and the corresponding performance measure.
`notclassified`	The indices of those observations not classfied at all, s. details.

Martin Slawski ms@cs.uni-sb.de

Anne-Laure Boulesteix boulesteix@ibe.med.uni-muenchen.de

Slawski, M. Daumer, M. Boulesteix, A.-L. (2008) CMA - A comprehensive Bioconductor package for supervised classification with high dimensional data. BMC Bioinformatics 9: 439

evaluation

CMA documentation built on Nov. 8, 2020, 5:02 p.m.