On Thu, 19 Dec 2002 [EMAIL PROTECTED] wrote: > I have a list of 102 vectors all of the same type and length called > time.by.orig. I can't data.frame(time.by.orig) but I can > data.frame(time.by.orig[1:length(time.by.orig)]). Why is this? Thanks for > your help.
You don't have a list: you have a one-dimensional array of mode list. Subsetting drops the dimension and gives you a list. Please pay attention to the messages: note the attributes of your object and that the error message said it was a list. > str(time.by.orig) > List of 102 > $ 1 : num [1:102] 1.34 17.39 14.36 14.22 7.56 ... > $ 2 : num [1:102] 17.5 0.7 17.7 12.4 10.4 ... > $ 3 : num [1:102] 14.063 17.568 0.754 8.065 15.100 ... > $ 4 : num [1:102] 13.940 12.423 7.546 0.766 14.977 ... > $ 100: num [1:102] 7.722 10.400 15.049 14.915 0.467 ... > $ 101: num [1:102] 5.68 13.99 13.90 13.77 4.01 ... > $ 102: num [1:102] 6.67 11.86 14.88 14.75 1.68 ... > ...... > - attr(*, "dim")= int 102 > - attr(*, "dimnames")=List of 1 > ..$ : chr [1:102] "1" "2" "3" "4" ... > > > > data.frame(time.by.orig) > Error in as.data.frame.default(x[[i]], optional = TRUE) : > can't coerce array into a data.frame > > > data.frame(time.by.orig[1:length(time.by.orig)]) > -Works fine Irrelevant earlier message deleted: please don't waste bandwidth like that. -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272860 (secr) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ [EMAIL PROTECTED] mailing list http://www.stat.math.ethz.ch/mailman/listinfo/r-help
