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qvalue (version 2.4.2)

Q-value estimation for false discovery rate control

Description

This package takes a list of p-values resulting from the simultaneous testing of many hypotheses and estimates their q-values and local FDR values. The q-value of a test measures the proportion of false positives incurred (called the false discovery rate) when that particular test is called significant. The local FDR measures the posterior probability the null hypothesis is true given the test's p-value. Various plots are automatically generated, allowing one to make sensible significance cut-offs. Several mathematical results have recently been shown on the conservative accuracy of the estimated q-values from this software. The software can be applied to problems in genomics, brain imaging, astrophysics, and data mining.

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141

Version

2.4.2

License

LGPL

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Last Published

February 15th, 2017

Functions in qvalue (2.4.2)

plot.qvalue

Plotting function for q-value object
lfdr

Estimate local False Discovery Rate (FDR)
pi0est

Proportion of true null p-values
hist.qvalue

Histogram of p-values
hedenfalk

P-values and test-statistics from the Hedenfalk et al. (2001) gene expression dataset
qvalue

Estimate the q-values for a given set of p-values
write.qvalue

Write results to file
summary.qvalue

Display q-value object
empPvals

Calculate p-values from a set of observed test statistics and simulated null test statistics