Length for pair of segments assigned by stride vs kaksi and psea vs kaksi. Length for pair of helices (upper part) and strands (lower part) when comparing STRIDE and KAKSI assignments, and PSEA and KAKSI assignments. We report a pair when we found at least one residue in the same state in both assignments. Data are shown as a "sunflower plot": a point stands for a single observation, then the number of "leaves" is proportional to the number of additional observations. The diagonal x = y (same length for two assignments) is shown.