Wilcoxon Signed Rank Test
Dear list, Please forgive me if this is a dumb question. I want to compare a set of paired data (pre and late). There are ties in pre and late. I searched on line, some document says use wilcox.exact in R instead of wilcox.test. Anyone has any experience using wilcoxon signed rank test to share?
R> library("exactRankTests")
R> x <- c(1.83, 0.50, 1.62, 2.48, 1.68, 1.88, 1.55, 3.06, 1.30)
R> y <- c(0.878, 0.647, 0.598, 2.05, 1.06, 1.29, 1.06, 3.14, 1.29)
R> wilcox.exact(x, y, paired = TRUE, alternative = "greater")
Exact Wilcoxon signed rank test
data: x and y
V = 40, p-value = 0.01953
alternative hypothesis: true mu is greater than 0
is one of the examples shown in ?wilcox.exact
Best,
Torsten
Thanks in advance. platform i686-pc-linux-gnu arch i686 os linux-gnu system i686, linux-gnu status major 2 minor 1.0 year 2005 month 04 day 18 language R -- Jeanie (Jie) Na Programmer Analyst II _ _ ___ _ _ ____ Department of Quantitative Health Sciences [_]-[_] / - \ | |_| | (_(_ Cleveland Clinic Foundation | | ( |_| ) ) _ ( _| ) Tel: (216)4451369 [_]-[_] \_\_\ |_| |_| (___/
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