Clusters identified in RHESSI (left column), Swift (middle column), and Konus GRBs (right column) with fastdp. Upper row: decision plots; the insets are the (ρ, δ) planes, with a few contours γ ≡ ρδ = const. displayed. Middle and bottom rows: resulting partitions into two and three clusters, respectively, with different colours (symbols – circles, squares, and diamonds) denoting the communities.