Figure 3
From: A novel parametric approach to mine gene regulatory relationship from microarray datasets
Illustration of vector analysis A) Mapping expression levels as sub-vectors (blue arrows) under each measurement in the coordination system of TF-TG’s expression levels. B) Sum vector (red arrow) of sub-vectors. C) Quadrantal sum vector calculation. Measurements of expression relationships corresponding to the sub-vectors in different quadrants represent different patterns. Therefore, the sum vectors (orange arrows) were calculated in different quadrants respectively, and then we chose the vector with the largest modulus as the main representative vector (red arrow) of one TF-TG pair. E.L: expression levels