Re: [R] Converting "list of data frame" to data frame since you didn't supply a reproducible example, here is a test that I ran with varying number of rows that seems to work fine.  You might want to provide at leat an "str" of the structure that you are doing the rbind on. > x <- lapply(1:10, function(z){ +     data.frame(a=runif(z), b=rnorm(z), c=factor(seq(z))) + }) > str(x) List of 10  $ :'data.frame':       1 obs. of  3 variables:   ..$ a: num 0.986   ..$ b: num -0.543   ..$ c: Factor w/ 1 level "1": 1  $ :'data.frame':       2 obs. of  3 variables:   ..$ a: num [1:2] 0.8121 0.0772   ..$ b: num [1:2] -0.349 -1.008   ..$ c: Factor w/ 2 levels "1","2": 1 2  $ :'data.frame':       3 obs. of  3 variables:   ..$ a: num [1:3] 0.970 0.989 0.176   ..$ b: num [1:3]  0.1058  0.4570 -0.0772   ..$ c: Factor w/ 3 levels "1","2","3": 1 2 3  $ :'data.frame':       4 obs. of  3 variables:   ..$ a: num [1:4] 0.3692 0.7254 0.4861 0.0638   ..$ b: num [1:4] 0.788 2.075 1.027 1.208   ..$ c: Factor w/ 4 levels "1","2","3","4": 1 2 3 4  $ :'data.frame':       5 obs. of  3 variables:   ..$ a: num [1:5] 0.109 0.333 0.837 0.277 0.587   ..$ b: num [1:5]  0.9811  0.5324 -0.0905  0.1565 -0.7373   ..$ c: Factor w/ 5 levels "1","2","3","4",..: 1 2 3 4 5  $ :'data.frame':       6 obs. of  3 variables:   ..$ a: num [1:6] 0.420 0.334 0.865 0.177 0.493 ...   ..$ b: num [1:6]  0.162  2.025 -0.704  0.961  1.790 ...   ..$ c: Factor w/ 6 levels "1","2","3","4",..: 1 2 3 4 5 6  $ :'data.frame':       7 obs. of  3 variables:   ..$ a: num [1:7] 0.507 0.155 0.348 0.660 0.312 ...   ..$ b: num [1:7]  0.409  1.689  1.587 -0.331 -2.285 ...   ..$ c: Factor w/ 7 levels "1","2","3","4",..: 1 2 3 4 5 6 7  $ :'data.frame':       8 obs. of  3 variables:   ..$ a: num [1:8] 0.706 0.476 0.495 0.308 0.695 ...   ..$ b: num [1:8]  0.421 -0.400 -1.370  0.988  1.520 ...   ..$ c: Factor w/ 8 levels "1","2","3","4",..: 1 2 3 4 5 6 7 8  $ :'data.frame':       9 obs. of  3 variables:   ..$ a: num [1:9] 0.4822 0.9205 0.0415 0.2940 0.5009 ...   ..$ b: num [1:9]  1.576 -1.476 -0.145 -0.953  0.407 ...   ..$ c: Factor w/ 9 levels "1","2","3","4",..: 1 2 3 4 5 6 7 8 9  $ :'data.frame':       10 obs. of  3 variables:   ..$ a: num [1:10] 0.938 0.716 0.163 0.476 0.690 ...   ..$ b: num [1:10] -0.706 -0.161  0.501 -1.014  1.615 ...   ..$ c: Factor w/ 10 levels "1","2","3","4",..: 1 2 3 4 5 6 7 8 9 10 > x.r <- do.call('rbind', x) > str(x.r) 'data.frame':   55 obs. of  3 variables:  $ a: num  0.9863 0.8121 0.0772 0.9702 0.9895 ...  $ b: num  -0.543 -0.349 -1.008  0.106  0.457 ...  $ c: Factor w/ 10 levels "1","2","3","4",..: 1 1 2 1 2 3 1 2 3 4 ... > > On 4/29/07, Ajit Pawar  wrote: > Spielas/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, Spielas Bates  wrote: > > > > On 4/28/07, Ajit Pawar  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. > --  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.