[R] Cramer von Mises test for a discrete distribution

Santiago Guallar sguallar at yahoo.com
Wed Feb 20 11:03:16 CET 2013


Thanks Barry,
 
Following your list order
1) It pops up a window saying R for windows GUI front-end crashed. Below three options: look for on-line solutions; shut down the program; debug the program (I'm translating from Spanish)
2) The processor of my laptop is an Intel Core duo 1,60GHz with ram= 4 GB, 32 bits. The R version I have installed is 2.15.2 (2012-10-26)
3) I read the posting-guide. Ok, it may be basic statistics. Question withdrawn
 
I made an additional mistake: I attached the wrong files. Please run the code with these, and you'll see the problem.
 
Santi
 
 

From: Barry Rowlingson <b.rowlingson at lancaster.ac.uk>
>To: Santiago Guallar <sguallar at yahoo.com> 
>Cc: "r-help at r-project.org" <r-help at r-project.org> 
>Sent: Tuesday, February 19, 2013 6:20 PM
>Subject: Re: [R] Cramer von Mises test for a discrete distribution
>
>On Tue, Feb 19, 2013 at 2:49 PM, Santiago Guallar <sguallar at yahoo.com> wrote:
>> Hi,
>>
>> I'm trying to carry out Cramer von Mises tests between pairs of vectors belonging to a discrete distribution (concretely frequencies from 0 to 200). However, the program crashes in the attempt. The problem seems to be that these vectors only have positive integer numbers (+ zero). When I add a random very small positive decimal to the non-decimal part everything works fine (files prm1 & prpmr1). I attach two of these vectors so you can run the following code. I've also thought to divide both vectors by a real constant such as pi. Do you think these two approaches are acceptable?
>>
>> setwd("")
>> require(CvM2SL2Test)
>> prm = scan('prm.txt')
>> prpmr = scan('prpmr.txt')
>> ct1 = cvmts.test(prm, prpmr) # here R crashes
>
>For you maybe. For me, works fine, and:
>
>> ct1
>
>[1] 30.20509
>
>> cvmts.pval( ct1, length(prm), length(prpmr) )
>
>- this is taking a bit longer. I gave up and killed it. Maybe it
>would have eventually "crashed R", but you said the other function
>call crashed R.
>
>Your two mistakes are:
>
>1. Saying "R crashes" without showing us any kind of crash report or
>error message.
>2. Not listing your system and package versions.
>
>Ah, your three mistakes are...
>
>3. Not reading http://www.r-project.org/posting-guide.html
>
>
>Barry
>
>
>
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