bookmark ddPCRclust Computes copies per droplet (CPDs) for multiplexed ddPCR reactions. ddPCRclust first finds the centroids and labelled them. Then, the application allocates the rain and determines the number of positive droplets to lastly determines the CPDs. It accepts up to four targets in a non-orthogonal arrangement. The package can be executed as a command-line system or through a graphic interface by using ddPCRvis module.