Ecoli.IPTGa {Ecoli}R Documentation

Ecoli IPTG data from Richmond et al. (1999)

Usage

example(Ecoli.IPTGa)

Format

A data frame with 4253 observations on 3 variables.
[,1] identifier factor probe identifier
[,2] Cy3 numeric normalized Cy3 intensity
[,3] Cy5 numeric normalized Cy5 intensity

Details

These data represent 4 chips under control, IPTG-a, IPTG-b and heat shock. The raw data are normalized using Ecoli.norm.

Source

CS Richmond, Department of Genetics, UW-Madison

References

CS Richmond, JD Glasner, R Mau, H Jin and FR Blattner (1999) Genome-wide expression profiling in Escherichia coli K-12. Nucleic Acids Research 27(19): 3821-3835. \ Newton MA, Kendziorski CM, Richmond CS, Blattner FR, Tsui KW (2001) On differential variability of expression ratios: Improving statistical inference about gene expression changes from microarray data. J Comp Biol 8: 37-52.

See Also

Ecoli, Ecoli.pickgene, Ecoli.oddsplot

Examples

library( pickgene )
library( Ecoli )

#analysis of IPTGa

data( Ecoli.IPTGa )
twoarray.plot( Ecoli.IPTGa, main = "IPTG-a",
  theta = c(12.5348,0.8163,0.3707,0.0069) )

#analysis of IPTGb

data( Ecoli.IPTGb )
twoarray.plot( Ecoli.IPTGb, main = "IPTG-b",
  theta = c(9.6886,0.6786,0.2844,0.0036) )

[Package Contents]