BCBCSF: Bias-Corrected Bayesian Classification with Selected Features

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Fully Bayesian Classification with a subset of high-dimensional features, such as expression levels of genes. The data are modeled with a hierarchical Bayesian models using heavy-tailed t distributions as priors. When a large number of features are available, one may like to select only a subset of features to use, typically those features strongly correlated with the response in training cases. Such a feature selection procedure is however invalid since the relationship between the response and the features has be exaggerated by feature selection. This package provides a way to avoid this bias and yield better-calibrated predictions for future cases when one uses F-statistic to select features.

Author
Longhai Li <longhai@math.usask.ca>
Date of publication
2015-09-26 01:05:27
Maintainer
Longhai Li <longhai@math.usask.ca>
License
GPL (>= 2)
Version
1.0-1
URLs

View on CRAN

Man pages

analyzefit
Functions for analyzing and visualizing a BCBCSF fitting...
data
Lymphoma Microarray Data
evalpred
A function for evaluating arrays of predictive probabilities...
example
Examples of fitting models, predicting class labels,...
fitpred
Functions for fitting models with MCMC, predicting class...
internal
Internal functions used in package 'gausspred'

Files in this package

BCBCSF
BCBCSF/src
BCBCSF/src/ccodes
BCBCSF/src/ccodes/adjfactor.c
BCBCSF/src/ccodes/pred.c
BCBCSF/src/all.c
BCBCSF/NAMESPACE
BCBCSF/data
BCBCSF/data/lymphoma.RData
BCBCSF/R
BCBCSF/R/tr-pr.r
BCBCSF/R/comp_pred.r
BCBCSF/MD5
BCBCSF/DESCRIPTION
BCBCSF/man
BCBCSF/man/evalpred.Rd
BCBCSF/man/analyzefit.Rd
BCBCSF/man/internal.Rd
BCBCSF/man/data.Rd
BCBCSF/man/example.Rd
BCBCSF/man/fitpred.Rd