[R] Rank sum in friedman test

Jim Lemon jim at bitwrit.com.au
Mon Jan 7 09:51:59 CET 2008


jeevitesh at ibab.ac.in wrote:
> Dear all,
> 
> 	 I'm using friedman rank test in R. Need to know how to calculate rank sum
> 
> in friedman test (R options to get rank sum in friedman test). Kindly help me.
> 
Hi jeevitesh,
The sums of ranks in the Friedman test are simply the column sums of the 
matrix of observed ranks. The sum of those ranks should equal:

nrows * (1:ncolumns)

Jim




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