This is very helpful, thank you.

On Tue, Jul 24, 2012 at 10:54 PM, David Carlson [via R] <
ml-node+s789695n4637703h9@n4.nabble.com> wrote:

> It all depends on which order you put the values. Try this
>
> wilcox.test(x=b$x,y=a$x,paired=TRUE)
>
> Either one is an extreme. A non significant value would be in the middle.
>
>
> ----------------------------------------------
> David L Carlson
> Associate Professor of Anthropology
> Texas A&M University
> College Station, TX 77843-4352
>
>
> > -----Original Message-----
> > From: [hidden email]<http://user/SendEmail.jtp?type=node&node=4637703&i=0>[mailto:
> r-help-bounces@r-
> > project.org] On Behalf Of Naomikb
> > Sent: Tuesday, July 24, 2012 4:36 PM
> > To: [hidden email]<http://user/SendEmail.jtp?type=node&node=4637703&i=1>
> > Subject: [R] Wilcoxon V = 0
> >
> > I am running a pairwise wilcoxon signed rank test, and I am not sure
> > how to
> > interpret the result.  I would like to see if there is a difference
> > between
> > the values in conditions a and b. It doesn't seem possible to have a V
> > = 0,
> > but a significant p value. Am I doing something wrong?
> >
> > The command I used is this:
> >  wilcox.test(x=a$x,y=b$x,paired=TRUE)
> >
> >
> > The output looks like this:
> > Wilcoxon signed rank test
> >
> > data:  a$x and b$x
> > V = 0, p-value = 0.0009766
> > alternative hypothesis: true location shift is not equal to 0
> >
> > The raw data is here:
> >
> > a
> >    participant        condition            x
> > 34           1 fused.mu.control           315.5677
> > 35           2 fused.mu.control           516.8781
> > 36           3 fused.mu.control           362.8108
> > 37           4 fused.mu.control           482.6022
> > 38           5 fused.mu.control           423.6593
> > 39           6 fused.mu.control           404.9358
> > 40           8 fused.mu.control           342.7314
> > 41           9 fused.mu.control           466.7561
> > 42          10 fused.mu.control           467.5002
> > 43          11 fused.mu.control           434.0221
> > 44          12 fused.mu.control           480.2990
> >
> >
> > b
> >    participant   condition      x
> > 45           1 fused.multi           373.0648
> > 46           2 fused.multi           517.5159
> > 47           3 fused.multi           390.2658
> > 48           4 fused.multi           497.2303
> > 49           5 fused.multi           519.7867
> > 50           6 fused.multi           499.7950
> > 51           8 fused.multi           345.8077
> > 52           9 fused.multi           479.1607
> > 53          10 fused.multi           539.5856
> > 54          11 fused.multi           446.9569
> > 55          12 fused.multi           569.5171
> >
> >
> >
> >
> > --
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> > 0-tp4637675.html
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> >
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>
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