L\'evy statistics in coding and non-coding nucleotide sequences
نویسندگان
چکیده
The diffusion entropy analysis measures the scaling of the probability density function (pdf) of the diffusion process generated by time series imagined as a physical source of fluctuations. The pdf scaling exponent, δ, departs in the non-Gaussian case from the scaling exponent HV evaluated by variance based methods. When δ = 1/(3 − 2HV ) Lévy statistics characterizes the time series. With the help of artificial sequences that are proved to be statistically equivalent to the real DNA sequences we find that long-range correlations generating Lévy statistics are present in both coding and non-coding DNA sequences. 2002 Elsevier Science B.V. All rights reserved.
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