A. Linear dependence of normalized length density ( NLD ) on the local extrema density ( Led ) in the log-log scale. Data on each line were derived from 30000 short epochs with different lengths (o - 7; x - 6; Δ - 5; ◇ - 4 samples). Epochs consisted of randomly generated samples in the range (0,1). B. Distributions of number of generated epochs, N(NLD), by their NLD values, derived from the 30000 seven-sample epochs from panel A. Histograms differ in the number of local extrema detected on the epochs (N
), and positions of their peaks correspond to ordinate values of circles on A.