Dear all R-users:
In my case the series is the annual number of dry spell with their length
exceeding a given threshold representing extreme events frequency.
1 0 2 2 1 1 2 1 2 1 1 1 2 3 4 0 2 3 1 2 3 1 2 1 2 0 1 2 2 2 3 4 2 0 2 1 2 2
2 6 1 2
4 1 3 1 2 1 3 4
I have been using Mann-Kendall test to estimate the trend. The result gives
slope of
zero value but signicant p value (at 95% level).Since there are many ties in
the data,
I wonder Mann-Kendall is a appropriate approach to test trends. Is there other
statistial method to deal with trend?
Any suggestion is appreciated in advance
Regards
--
Wang Yi
START Regional Center for Temperate East Asia(TEA),
Institute of Atmospheric Physics(IAP),
Chinese Academy of Sciences(CAS),
Qijiahuozi Huayanli 40#,
P.O.Box 9804, Beijing 100029,China
Tel:13466795920
E-mail:wan...@tea.ac.cn
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