Skip to main content

Table 1 Effect of deliberate regional bias distortions on MAS5 estimates

From: Quality assessment of microarrays: Visualization of spatial artifacts and quantitation of regional biases

 

Region

.05

.10

.25

.50

Factor

     

1.4

RMA

<.001

.011

.019

.029

 

MAS5

.019

.031

.047

.063

 

R

.426

.549

.69

.74

2.0

RMA

.001

.003

.039

.35

 

MAS5

.034

.057

.100

.155

 

R

.647

.764

.864

.89

  1. Entries for RMA and MAS5 in the table are fractions of probe set abundance estimates (i.e., gene expression estimates) changed by more than 0.5 on a log2 scale as a consequence of the bias introduced. The rows labeled R report values of the local correlation, R.