Implement GRN visualization for evaluated algorithms

[ktakers]

Implement a script to apply a threshold on the ranked edges output by evaluated algorithms to construct a GRN, and output the inferred GRN as a Cytoscape or GraphSpace file for visualization.

[ktakers]

Create GRN tutorial account on GraphSpace. Upload graph to shared account and make the graph public. Output a link to a graph.

Create a graph that is the union of the inferred GRN and the ground truth networks that distinguishes between TP/FP/FN edges