If you are interested in a monotonic increase then the rank based tests are probably appropriate. In the simplest case Spearman's rho will be 1 if there is a monotonic increasing function of time. Other tests based on ranks exist (Page, Jonckheere etc.).
Thom Alok wrote: > > Is there any good test which can figure out if there is an increasing > trend in a set of time ordered data. Currently using somthing like a > Pairwise Comparision Test (PCT) , but was wondering if there is > anything more robust. > PCT = Summation ( I (Dk > Dk-1) )) / T > where T is the total number of points and I returns 1 if condition is > true and 0 if condition is false. > > thanks > alok . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
