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Table 1 The correlation coefficient for pair wise comparisons of samples within and across chip generations and scanner settings.

From: Reproducibility of gene expression across generations of Affymetrix microarrays

  No. of probe sets U95A / Low Gain in common U95A / Low Gain Correlation (r)
Experiment     MAS 4.0 MAS 5.0
1 12,625 Chip3 Chip4 0.994 0.993
   Chip7 Chip8 0.996 0.989
   U95A / High Gain U95A / Low Gain   
2 12,626 Chip2 Chip3 0.847 0.846
   Chip6 Chip7 0.756 0.753
  12,600 Chip10 Chip11 0.843 0.815
   Chip13 Chip14 0.824 0.827
   HuGeneFL/High Gain HuGeneFL/Low Gain   
3 7,129 Chip15 Chip16 0.906 0.912
   Chip18 Chip19 0.904 0.913
   Chip21 Chip22 0.947 0.955
   HuGeneFL/High Gain U95A / Low Gain   
4 8,044 Chip1 Chip4 0.745 0.802
   Chip5 Chip7 0.730 0.719
   Chip9 Chip11 0.749 0.690
   Chip12 Chip14 0.798 0.760
   Chip15 Chip17 0.818 0.792
   Chip18 Chip20 0.803 0.766
   Chip21 Chip23 0.810 0.789