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Jul 6, 2015 at 13:39 comment added A. Webb @Wrzlprmft This is the typical normal approximation significance test in the presence of ties. The Wikipedia article has good information/references for the various adjustments needed to account for ties.
Jul 3, 2015 at 19:45 comment added Wrzlprmft Do you happen to know whether there is any difference between the Mann–Kendall test and the normal significance test for Kendall’s τ? Or is the Mann–Kendall test even the normal way of obtaining significance values for Kendall’s τ? At least the test statistics only differ by a normalisation factor that only depends on the length of the time series: $S = \tfrac{1}{2} n (n-1) τ.$
Jul 2, 2015 at 20:02 history edited A. Webb CC BY-SA 3.0
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Jul 2, 2015 at 19:56 history answered A. Webb CC BY-SA 3.0