Hello Greg,
Thank you so much for your kind assistance. It looks like there's no way
around using the formula format. I longed in vain for a simpler script
more like the wilcox.test format. Thanks again.
Janh
On Thu, May 30, 2013 at 6:21 PM, Greg Snow <538...@gmail.com> wrote:
> Ok, it looks like the function mainly works through the formula syntax.
> It still would have been nice to have a reproducible example of what your
> data may look like, but I can show an example with simulated x and y:
>
> > x <- rpois(10, 3)
> > y <- rpois(11, 3.1)
> > mydf <- data.frame( vals = c(x,y),
> + group=rep( c('x','y'), c( length(x), length(y) ) ) )
> > wilcox_test( vals ~ group, data=mydf )
>
> Asymptotic Wilcoxon-Mann-Whitney Test
>
> data: vals by group (x, y)
> Z = -1.3718, p-value = 0.1701
> alternative hypothesis: true mu is not equal to 0
>
> Does that help? (maybe I am the heedlessness theorist after all)
>
>
>
> On Thu, May 30, 2013 at 4:14 PM, Janh Anni <annij...@gmail.com> wrote:
>
>> I thought (hoped) wilcox_test(x,y) would do it but it doesn't and the
>> package maintainer says the data have to be rearranged but does not specify
>> how. Thanks
>>
>> Janh
>>
>>
>>
>> On Thu, May 30, 2013 at 6:05 PM, Greg Snow <538...@gmail.com> wrote:
>>
>>> What have you tried so far? Have you read the help page? have you run
>>> the examples on that page?
>>>
>>> I would expect that it is something as simple as
>>>
>>> library(coin)
>>> wilcox_test(x,y)
>>>
>>> or
>>>
>>> wilcox_test( y ~ group )
>>>
>>> But you should trust the help page more than the expectations of someone
>>> who has not read it recently (see fortune(14)).
>>>
>>> If that does not answer your question then give us more detail on what
>>> you tried, what you expected the results to be, what the results actually
>>> were, and how they differed. Without that information we have to resort to
>>> mind reading and the current implementation of the esp package is still
>>> very pre-alpha, it suggests that the answer to your question is:
>>>
>>> > esp()
>>> [1] "selflessly vigilantly pigeon theorist heedlessness"
>>>
>>> Which is either much to profound for the likes of me to understand or is
>>> complete gibberish (which is only slightly less helpful than an overly
>>> general question without a reproducible example).
>>>
>>>
>>> On Thu, May 30, 2013 at 2:07 PM, Janh Anni <annij...@gmail.com> wrote:
>>>
>>>> Dear All,
>>>>
>>>> I have two simple data samples (no groups or factors, etc.) and would
>>>> just
>>>> like to compute the two-sample Wilcoxon Rank Sum test using the
>>>> wilcox_test
>>>> function contained in the coin package, which is reportedly better than
>>>> the
>>>> regular wilcox.test function because it performs some adjustment for
>>>> ties.
>>>> Would anyone know how to craft a script to perform this task? Much
>>>> appreciated.
>>>>
>>>> Janh
>>>>
>>>> [[alternative HTML version deleted]]
>>>>
>>>> ______________________________________________
>>>> R-help@r-project.org mailing list
>>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>>> PLEASE do read the posting guide
>>>> http://www.R-project.org/posting-guide.html
>>>> and provide commented, minimal, self-contained, reproducible code.
>>>>
>>>
>>>
>>>
>>> --
>>> Gregory (Greg) L. Snow Ph.D.
>>> 538...@gmail.com
>>>
>>
>>
>
>
> --
> Gregory (Greg) L. Snow Ph.D.
> 538...@gmail.com
>
[[alternative HTML version deleted]]
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