Your method seems to only re-express the data "data.frame(x, g)" using another format. The results are really from the generated data frame. Maybe be not good. > table(g) g 0 1 2 3 7 9 8 6 I hope to randomly split the value 'x' according to the different sample sizes of different levels, displayed above. That is, 7 for level 0, 9 for level 1, et al. Thanks.
2010/2/26 Henrique Dallazuanna <www...@gmail.com> > Try this: > > split(data.frame(x, g), g) > > On Fri, Feb 26, 2010 at 3:55 PM, rusers.sh <rusers...@gmail.com> wrote: > > Hi, > > I am using split function and wonder how to add the factor to the > splitted > > results. > > #Example > > n <- 3; nn <- 10 > > g <- factor(round(n * stats::runif(n * nn))) #factor > > x <- rnorm(n * nn) + sqrt(as.numeric(g)) #value > > xg <- split(x, g) > > xg > > $`0` > > [1] 0.82513702 -0.03911584 2.32955347 0.36745335 1.75572642 > 2.65461438 > > 0.41675829 > > $`1` > > [1] 0.8583493 2.4264804 -0.3622378 3.1770015 0.5162129 > > $`2` > > [1] 1.7914651 1.1440121 0.8097543 1.2064742 1.6411988 1.3743778 > 1.7094387 > > 2.1204501 1.9330132 2.0731997 > > [11] 2.8931865 2.5825309 0.6978723 > > $`3` > > [1] 3.0246214 1.6870782 0.9685926 1.6449350 0.9378751 > >> g > > [1] 2 2 3 2 1 3 2 3 3 1 2 2 2 2 0 0 3 0 2 2 1 1 2 2 0 1 2 0 0 0 > > Levels: 0 1 2 3 > > > > Anybody can tell me how to add the corresponding values of factor "g" to > > the splitted results 'xg' to get a data frame? > > Something like, > > > > Splitted/xg factor/g > > 0.82513702 0 > > -0.03911584 0 > > 2.32955347 0 > > ... > > I know i can use "xg$'0',xg$'1',xg$'2',xg$'3'" to get the values of each > > class and then add a new variable to indicate the factor. > > But i hope to get a method to automatic do those things. Any ideas? > > Thanks. > > > > > > -- > > ----------------- > > Jane Chang > > Queen's > > > > [[alternative HTML version deleted]] > > > > ______________________________________________ > > 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. > > > > > > -- > Henrique Dallazuanna > Curitiba-Paraná-Brasil > 25° 25' 40" S 49° 16' 22" O > -- ----------------- Jane Chang Queen's [[alternative HTML version deleted]]
______________________________________________ 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.