Hello, Does anyone know of an R implementation of diffusion entropy analysis (DEA) as proposed by Scafetta dn Grigolini (2002)? I was unable to find any existing functions, so I attempted to write up my own, but cannot reproduce known results, so obviously I'm doing something wrong. If there does not appear to be any existing script, I'll send along my attempts for your critique. I'd also be happy for any leads on scripts written in languages other than R. Thanks very much in advance-- Andy Rominger Scafetta N, and Grigolini P (2002) Scaling detection in time series: Diffusion entropy analysis. Phys. Rev. E 66:1:10. [[alternative HTML version deleted]]