We provide a collection of heatmaps describing Node42’s activity pattern in each experiment covered in our compendium. Each experiment was named by its ArrayExpress ID. The activity values in each dataset were mean-centered and the complete range of node activities was used to generate the color range.
We can see that Node 42’s activity does not change in some experiments such as E-GEOD-14253 (the small range of the color key indicates that Node 42’s activity does not vary across samples), while it varies significantly in others (such as E-GEOD-17179, in which the magnitude of activity change is > 30). In some experiments, Node 42’s activity varies across samples but not between experimental groups, suggesting sample-to-sample differences.