hurst exponent

Discussion created by changkx on Jul 26, 2017
Latest reply on Jul 29, 2017 by Dan_Patterson

I  wan to calculate trend analysis of MODIS-NDVI data by Hurst exponent, but I feel puzzled at the results, it seems wrong.

  •  The Hurst exponent, proposed by the British hydrologist Hurst, is estimated using R/S
    analysis and is an effective way of measuring the long-time dependence of a time series. The
    main principles are as follows (John et al., 2008).
  • I have attached the Python Script and NDVI data.