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## Wilcoxon signed rank - using R

### Wilcoxon's matched pairs signed ranks test

Gives something like this:

 Wilcoxon signed rank test data: x and y V = 424.5, p-value = 7.24e-06 alternative hypothesis: true mu is not equal to 0 95 percent confidence interval: 2.500027 9.999986 sample estimates: (pseudo)median 4.500052 Warning messages: 1: cannot compute exact p-value with ties in: wilcox.test.default(x, y, paired = TRUE, correct = FALSE, conf.int = TRUE) 2: cannot compute exact confidence interval with ties in: wilcox.test.default(x, y, paired = TRUE, correct = FALSE, conf.int = TRUE) 3: cannot compute exact p-value with zeroes in: wilcox.test.default(x, y, paired = TRUE, correct = FALSE, conf.int = TRUE) 4: cannot compute exact confidence interval with zeroes in: wilcox.test.default(x, y, paired = TRUE, correct = FALSE, conf.int = TRUE) >