varBeta

vector with components between 0 and 1

value between 0 and 0.5 used as trim parameter

trim.opt

This is an internal function. 
Given a vector with values between 0 and 1 and assumed to
come from a beta distribution, this function return the variance of 
the distribution. A trim parameter allow to have a robust value

A fold change rank based method is presented to search for genes with changing
expression and to detect recurrent chromosomal copy number aberrations. This
method may be useful for high-throughput biological data (micro-array, sequencing, ...).
Probabilities are associated with genes or probes in the data set and there is no
problem of multiple tests when using this method. For array-based comparative genomic
hybridization data, segmentation results are obtained by merging the significant
probes detected.

Doulaye Dembele

fcros

A Method to Search for Differentially Expressed Genes and to
Detect Recurrent Chromosomal Copy Number Aberrations

varBeta function

<dl> <dt>x</dt>
<dd>vector with components between 0 and 1</dd> <dt>trim.opt</dt>
<dd>value between 0 and 0.5 used as trim parameter</dd></dl>

Arguments

Author

Compute variance of a beta distribution from data — varBeta

<dl>

 <dt>x</dt>
<dd>vector with components between 0 and 1</dd>

 <dt>trim.opt</dt>
<dd>value between 0 and 0.5 used as trim parameter</dd>

</dl>

varBeta: Compute variance of a beta distribution from data

Description

Usage

Value

Arguments

Author

References

Examples