Vessels                 Results from a microarray expriment comparing
                        umbilical veins and arteries tissues
colorectalcancer        Results from a microarray experiment comparing
                        colorectal cancer samples and normal tissue
                        samples.
combfunc                Combining two p-values using Fisher's product
                        or normal inversion method
makeSPIAdata            Process KGML files for spia analysis
plotP                   SPIA two-way evidence plot
spia                    Signaling Pathway Impact Analysis (SPIA) based
                        on over-representation and signaling
                        perturbations accumulation
