convert_id              Convert Gene Symbols to ENTREZ IDs
filter_drugs            Re-rank drugs based on the number of targets
get_drugs               Get Drugs associated with the differential
                        expression profile
get_pert_by_type        Filter the drug based on the tested cell-line
parse_perts             Parse the perturbagens to find out their
                        frequency of occurrence.
plot_activities         Visualise the number of perturbagens and the
                        top activities
prepare_ids             Prepare IDs for CMAP Search
read_id                 Read Gene Symbols from CSV file into up and
                        down regulated lists
run_pipeline            Run the main pipeline for getting drugs from
                        differentail expression profile
