[R] List of multidimensional arrays

Berend Hasselman bhh at xs4all.nl
Thu Oct 25 15:23:38 CEST 2012


You were asked to provide R code in ascii text.
Also use dput to get the objects into a mail.

Nobody is going to make the effort to copy from your pdf. I certainly will not.

Berend

On 25-10-2012, at 13:45, Loukia Spineli wrote:

> x and y are the frequencies of missing participants in the intervention and
> the control treatment respectively! vector t contains the code of the
> interventions (we have 11 interventions). I re-attach the PDF with some
> small modifications. I am trying to create a list, where each list element
> is a vector of different length arrays that contain 2by2 matrices. To be
> more specific there are 11 treatments that are compared with placebo (we
> have 11 comparisons) and each comparison is studied by a different number
> of trials and each trial has a different number of missing participants in
> both arms. The length of the list is equal to the number of comparisons. In
> each comparison the number of arrays is equal to the number of trials that
> study this comparison. For instance 4 trials compare PAR with placebo. So,
> for this comparison we have 4 arrays and each array has a length equal to
> the producy of the number of participants in each arm. These arrays contain
> 2x2 matrices.
> 
> I have attached a document with the data and the code. I cannot create the
> list results the way I have described above. It creates only the  matrices
> for the first array (that has length equal to 135) of the first comparison
> leaving the rest 10 comparisons "NULL".
> 
> On Wed, Oct 24, 2012 at 5:17 PM, Richard M. Heiberger <rmh at temple.edu>wrote:
> 
>> I am looking at your pdf file.
>> 
>> it doesn't match your description.
>> 
>> There are no missing values in the vectors
>> x, y, t.
>> Each vector has length 55 which is not a multiple of 4,
>> so we don't know where the 2x2 matrices come from.
>> 
>> The code doesn't run.  There are are too many "}".
>> PDF files are formatted and are not ascii.
>> 
>> Please send your code in ascii text in the body of the email.
>> Please pick it up from your email and paste it into
>> a fresh R session to be sure that it works.
>> 
>> Perhaps consrtruct manually an example of what you want the answer to look
>> like.
>> 
>> Rich
>> 
>> 
>> 
>> On Wed, Oct 24, 2012 at 3:51 AM, Loukia Spineli <spineliloukia26 at gmail.com
>>> wrote:
>> 
>>> Dear all,
>>> 
>>> I am trying to create a list, where each list element is a vector of
>>> different length arrays that contain 2by2 matrices. To be more specific
>>> there are 11 treatments that are compared with placebo (we have 11
>>> comparisons) and each comparison is studied by a different number of
>>> trials
>>> and each trial has a different number of missing participants in both
>>> arms.
>>> The length of the list is equal to the number of comparisons. In each
>>> comparison the number of arrays is equal to the number of trials that
>>> study
>>> this comparison. For instance 4 trials compare PAR with placebo. So, for
>>> this comparison we have 4 arrays and each array has a length equal to the
>>> producy of the number of participants in each arm. These arrays contain
>>> 2x2
>>> matrices.
>>> 
>>> I have attached a document with the data and the code. I cannot create the
>>> list results the way I have described above. It creates only the  matrices
>>> for the first array (that has length equal to 135) of the first comparison
>>> leaving the rest 10 comparisons "NULL".
>>> Any suggestion would be  really helpful
>>> 
>>> Thank you in advance,
>>> Loukia
>>> 
>>> ______________________________________________
>>> R-help at 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.
>>> 
>>> 
>> 
> <List of multidimensional arrays.pdf>______________________________________________
> R-help at 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.




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