(a) (b) (c)

The ROC curves for three models for the simulated data set for the gene

bimodality pattern discovery simulation.

The example of a simulated bimodal gene. The dots stand for the expressions of

The dots surrounded by the triangles stand for the boundary between two

expressions. ‘BI0’ stands for the bimodal index threshold for discriminating

e bimodal genes and the unimodal genes. This threshold was estimated based

e data set. The inset histogram shows the density of the logarithm of expressions

Another example of simulated bimodal gene. The graphics codes refer to Figure