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SAGx (version 1.46.0)

Xprep: Fitting of a linear model

Description

The function fits a linear model to a microarray data matrix.

Usage

Xprep(indata=M, formula=~as.factor(g), contrast=c(0,1), design=NULL)

Arguments

indata
The data matrix
formula
a linear model formula in the lm format
contrast
a vector defining the contrast of interest
design
the design matrix

Value

  • a list with the entries
  • Mbarestimate of the contrast
  • Vestthe error variance
  • kinverse of the scale factor turning Vest into a standard error
  • fthe degrees of freedom of Vest
  • designthe design matrix