Intensity data for one cDNA slide with two adjacent tissue samples from a nephrectomy (kidney)

Usage

data(kidney)

Format

kidney is an ExpressionSet containing the data from one cDNA chip. The 8704x2 matrix exprs(kidney) contains the spot intensities for the red (635 nm) and green color channels (532 nm) respectively. For each spot, a background estimate from a surrounding region was subtracted.

Details

The chip was produced in 2001 by Holger Sueltmann at the Division of Molecular Genome Analysis at the German Cancer Research Center in Heidelberg.

References

Huber W, Boer JM, von Heydebreck A, Gunawan B, Vingron M, Fuzesi L, Poustka A, Sueltmann H. Transcription profiling of renal cell carcinoma. Verh Dtsch Ges Pathol. 2002;86:153-64. PMID: 12647365

Examples

 data("kidney")
 plot(exprs(kidney), pch = ".", log = "xy")
#> Warning: 591 x values <= 0 omitted from logarithmic plot
#> Warning: 603 y values <= 0 omitted from logarithmic plot
 abline(a = 0, b = 1, col = "blue")