On Oct 23, 2012, at 11:36 PM, Loukia Spineli 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.
Well, "A" for effort but somewhat lower grade for not reading the Posting Guide and attaching a MIME-text file. > 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@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. David Winsemius, MD Alameda, CA, USA ______________________________________________ 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.
