Figure 4From: Computational tradeoffs in multiplex PCR assay design for SNP genotypingMulti-node graphs. A multi-node graph is a convenient way of formalizing the multiplex PCR problem. In multi-node graphs, individual nodes can take on one or more states. In this figure, an edge between two nodes, X and Y, is determined by the state of the two nodes, or more specifically, an edge matrix EXY connecting nodes X and Y. There is no restriction on the number of states per node, and each node may contain a different number of states.Back to article page