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.
