https://communities.sas.com/t5/Statistical-Procedures/Walsh-Averages-and-Wilcoxon-Statistic/m-p/65767#M3131 So it looks like there was both a coincidence and SAS doesn't give the rank sign test statistic as expected. SAS subtracts Nt(Nt+1)/4 from the usual rank sign test where Nt is the number of values not equal to the hypothesized median. Does anyone know where this comes from? Thu, 27 Jan 2011 18:26:04 GMT RickM 2011-01-27T18:26:04Z https://communities.sas.com/t5/Statistical-Procedures/Walsh-Averages-and-Wilcoxon-Statistic/m-p/65766#M3130 Since my company still hasn't switched to 9.2 I am in the middle of writing a program that computes the Hodges-Lehmann estimate and CI. I want to check that my Walsh averages are correct and I know that you can use them to calculate the Wilcoxon Signed Rank test statistic so I am checking my derived value against proc univariates output. The problem is that my Walsh averages have ties at mu=0 and the only reference I could find for ties online said to count ties as 0.5 and values greater than 0 as 1 and sum up those values. <BR /> <BR /> My value for S does not match proc univariate. It seems from my data that I should count ties as 0.25. Is my code all wrong and this is a coincidence or is my reference wrong? Tue, 25 Jan 2011 20:38:37 GMT https://communities.sas.com/t5/Statistical-Procedures/Walsh-Averages-and-Wilcoxon-Statistic/m-p/65766#M3130 RickM 2011-01-25T20:38:37Z https://communities.sas.com/t5/Statistical-Procedures/Walsh-Averages-and-Wilcoxon-Statistic/m-p/65767#M3131 So it looks like there was both a coincidence and SAS doesn't give the rank sign test statistic as expected. SAS subtracts Nt(Nt+1)/4 from the usual rank sign test where Nt is the number of values not equal to the hypothesized median. Does anyone know where this comes from? Thu, 27 Jan 2011 18:26:04 GMT https://communities.sas.com/t5/Statistical-Procedures/Walsh-Averages-and-Wilcoxon-Statistic/m-p/65767#M3131 RickM 2011-01-27T18:26:04Z