This does not look like a "list of dataframes" where each dataframe is an element of the list. This appears to just be a list with all the elements of the data frames at the same levels. A list of data frames would look like this:
> x <- list(data.frame(a=1:5, b=1:5), data.frame(a=6:10, b=6:10)) > str(x) List of 2 $ :'data.frame': 5 obs. of 2 variables: ..$ a: int [1:5] 1 2 3 4 5 ..$ b: int [1:5] 1 2 3 4 5 $ :'data.frame': 5 obs. of 2 variables: ..$ a: int [1:5] 6 7 8 9 10 ..$ b: int [1:5] 6 7 8 9 10 > It would appear that if you have one large list, then you will have to individually split off each of the 10 elements (this appears to be the pattern) into a data frame and then 'rbind' the data. On 4/30/07, Ajit Pawar <[EMAIL PROTECTED]> wrote: > Greetings Douglas/Jim/John/R-help, > Thanks for your help so far. > > Answering your questions - doing an "str' on the list reveals > following (head) information : > > --------------- > $ : Factor w/ 729 levels "XX1","YY1",..: 6 9 10 12 13 14 19 22 29 30 ... > $ : int [1:109] 19950201 19950201 19950201 19950201 19950201 19950201 > 19950201 19950201 19950201 19950201 ... > $ : num [1:109] -0.01046 -0.00528 -0.02559 0.02216 0.00847 ... > $ : int [1:109] -133822 -351764 -7525444 127357 572325 -68655 -22455 > -1241321 298967 -208658 ... > $ : num [1:109] -523244 -263823 -1279325 1108006 423520 ... > $ : int [1:109] 19950301 19950301 19950301 19950301 19950301 19950301 > 19950301 19950301 19950301 19950301 ... > $ : int [1:109] 2 4 5 6 13 10 4 3 7 9 ... > $ : num [1:109] 3.93 0.74 0.17 9.28 0.7 8.45 1.3 0.66 4.76 1.35 ... > $ : num [1:109] 0.001536 0.000246 0.000107 0.000755 0.000541 ... > $ : num [1:109] 0.0051 -0.0133 0.0000 0.0667 -0.0541 ... > $ : Factor w/ 729 levels "XX1","YY1",..: 4 5 6 9 10 11 12 13 14 16 ... > $ : int [1:196] 19950301 19950301 19950301 19950301 19950301 19950301 > 19950301 19950301 19950301 19950301 ... > $ : num [1:196] 0.00424 0.02575 -0.01155 -0.00540 -0.00272 ... > $ : int [1:196] 152489 146440 -152062 -377393 -828313 220702 107320 572325 > -156050 -298177 ... > $ : num [1:196] 219584 1332604 -597604 -279271 -140813 ... > $ : int [1:196] 19950401 19950401 19950401 19950401 NA 19950401 19950401 > 19950401 19950401 19950401 ... > $ : int [1:196] 2 7 2 4 NA 4 6 13 10 1 ... > $ : num [1:196] 1.38 9.08 3.55 0.91 NA 1.57 11 0.54 8.35 3.48 ... > $ : num [1:196] 0.000801 0.003298 0.001468 0.000303 NA ... > $ : num [1:196] -0.0069 -0.0022 -0.0967 0.2297 NA ... > $ : Factor w/ 729 levels "XX1","YY1",..: 4 5 6 9 11 12 13 14 16 17 ... > > --------------- > Just typing the list name reveals the following information: > > [,1] [,2] [,3] [,4] [,5] [,6] > idfactor,109 factor,196 factor,199 factor,181 factor,183 factor,181 > info1 Integer,109 Integer,196 Integer,199 Integer,181 Integer,183 > Integer,181 > info2 Numeric,109 Numeric,196 Numeric,199 Numeric,181 Numeric,183 > Numeric,181 > info3 Integer,109 Integer,196 Integer,199 Integer,181 Integer,183 > Integer,181 > info4 Numeric,109 Numeric,196 Numeric,199 Numeric,181 Numeric,183 > Numeric,181 > info5 Integer,109 Integer,196 Integer,199 Integer,181 Integer,183 > Integer,181 > .. > .... > ... > info10 Integer,109 Integer,196 Integer,199 Integer,181 Integer,183 > Integer,181 > > --------------- > and dim & typeof information shows the following: > > dim => [1] 10 140 > > typeof => [1] "list" > > --------------------- > > Does the above information help? > > > Thanks a bunch! > > AP. > > > > On 4/30/07, John Kane <[EMAIL PROTECTED]> wrote: > > > > I just tried an artifical example and the approach > > seems to work okay > > > > # Joining data.frames stored in a list > > # From "Douglas Bates" > > > > aa <- 1:4 > > bb <- 2:5 > > cc <- 3:6 > > dd <- 4:7 > > ee <- 5:8 > > ff <- c(rep(NA,4)) > > gg <- 6:9 > > > > lst <- list(data.frame(aa,bb), data.frame(cc,dd), > > data.frame(ee,ff,gg)) > > tatiana <- names(lst) <- c("A", "C", "E") > > > > maxy <- do.call("rbind", c(lst$A, lst$C, lst$E)) ; > > maxy > > > > miny <- do.call("cbind", c(lst$A, lst$C, lst$E)) ; > > miny > > > > What are the dimensions of your data frames? > > --- Ajit Pawar <[EMAIL PROTECTED]> wrote: > > > > > Douglas/R-help, > > > Thanks for your reply. I did try the > > > solution but the result is not > > > what I expect and I also get the following warning > > > message: > > > > > > ------------------- > > > Warning message: > > > number of columns of result > > > is not a multiple of vector length (arg 1) > > > in: rbind(1, c(6, 9, 10, > > > 12, 13, 14, 19, 22, 29, 30, 42, 45, 47, > > > ------------------- > > > > > > The "list of data frames" that sapply > > > returns has same number of > > > columns *but* different number of rows depending on > > > the index of sapply. > > > > > > Any idea what might be going wrong? > > > > > > Many thanks in advance!. > > > > > > Cheers > > > > > > AP > > > > > > > > > > > > > > > > > > > > > On 4/29/07, Douglas Bates <[EMAIL PROTECTED]> > > > wrote: > > > > > > > > On 4/28/07, Ajit Pawar <[EMAIL PROTECTED]> > > > wrote: > > > > > Greetings, > > > > > This might be something very simple but a > > > nice solution eludes > > > > me!! > > > > > > > > > > I have a function that I call within > > > sapply that generates data > > > > frame > > > > > in each call. Now when sapply returns me back > > > the result - it's in the > > > > form > > > > > of a "list of data frames". so in order to > > > extract the information into > > > > a > > > > > single data frame I have to loop thru the > > > following code: > > > > > > > > > > for(i=1:n) { > > > > > my.df = > > > rbind(my.df,list.from.sapply[,i]); > > > > > } > > > > > > > > > > Is there anyway to code it better? > > > > > > > > do.call("rbind", my.df.list.from.sapply) > > > > > > > > > > [[alternative HTML version deleted]] > > > > > > ______________________________________________ > > > R-help@stat.math.ethz.ch 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. > > > > > > > > > > > Be smarter than spam. See how smart SpamGuard is at giving junk email > > the boot with the All-new Yahoo! Mail at > > http://mrd.mail.yahoo.com/try_beta?.intl=ca > > > > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@stat.math.ethz.ch 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. > -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem you are trying to solve? ______________________________________________ R-help@stat.math.ethz.ch 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.