Message-ID: <4FBD2AC1.4030301@ucalgary.ca>
Date: 2012-05-23T18:21:53Z
From: Peter Ehlers
Subject: two sided wilcox test
In-Reply-To: <jpj675$2i0$1@dough.gmane.org>
On 2012-05-23 10:19, csrabak wrote:
> Em 23/5/2012 11:59, evaD escreveu:
>> Hey, could I just ask you a quick question?
>>
>>
>> if i have two sets of numbers, eg:
>>
>> list1 = 1,3,4,4,4 list2 = 1,2,4,5,6
>>
>>
>>
>> and in R, i run the command:
>>
>> wilcox.test(list1, list2, paired=TRUE, alternative="greater")
>>
>> and say i get a p-value of 0.0001
>>
>> Does this tell me that my values in list 1 tend to be larger than my
>> values in list 2, and that the difference in the distributions is
>> significant?
>>
> Read the third paragraph of the "Details" section of help page for this
> function, which you can reach typing:
>
> > ?wilcox.test
Or, if that's not clear enough, why not just try it
on a case with known result:
y <- 1:10
x <- y + runif(10)
wilcox.test(x, y, ....)
Peter Ehlers