Current Analytical Methods of DNA Microarray Data - DNA Microarray Technology and Data Analysis in Cancer Research - page 36

which are calculated by probeset-specific error variance. Probes shown in
red have a q -value < 0.1.

3.5. Coefficient of Variation Analysis

Analyzing the spread of mean coefficient of variation data across sample
groups allows for the identification of outlier probesets, which may con-
tain probe-level intensity trends that may be indicative of alternative splic-
ing or bad probes (Fig. 3.14).