Disagreements with Other Statistics Programs

Differences in statistical results between ArrayStar and another program can be due to many factors. However, when making a comparison, it is important to confirm that the parameters used for both analyses are the same.

Two important factors to note:

•      ArrayStar always uses the log₂ of expression values for statistical analysis.

•      By default, FDR is used as the multiple testing correction method. You may change the method or perform an uncorrected test by changing the statistics parameters used.

When the parameters used in both tests are the same, the results in ArrayStar should correspond to the results obtained from other statistical programs.