Select probes based on fold change calculation

Description

Takes a Codelink object and calculate fold changes (M) between two conditions (samples). Then select genes based on those who pass the passed cutoff.

Usage

1
  fc2Cond(object, cond1=NULL, cond2=NULL, fc=1.0, verbose=FALSE)

Arguments

object

an object of class "Codelink".

cond1

numeric or character; First condition to compute M.

cond2

numeric or character; Second condition to compute M.

fc

value of the fold change cutoff

verbose

logical; if some information is printed on the console.

Details

Conditions can be passed as characters or as numeric index from the sample slot. The intensities are internally transformed to log2 if needed. The M value is computed as:

M = cond1 - cond2

Value

A logical vector indicating which genes pass the cutoff

Author(s)

Diego Diez

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