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Place cell distribution type samples. (A) Uniform single-scale, 20 cm cells, 14 x 10 grid. (B) Uniform single-scale, 32 cm cells, 14 x 10 grid. (C) Uniform single-scale, 32 cm cells, 9 x 6 grid. (D) Uniform multi-scale. (E) Locally uniform multi-scale. (F) Non-uniform multi-scale. In all samples, the red dots indicate the feeders.
