Just one more thing... I get a list with 15 data.frames : List of 15 $ 1:'data.frame': 7 obs. of 9 variables: ..$ vrtina : Factor w/ 6 levels "T1A-1","T1A-2",..: 1 1 2 2 5 5 5 ..$ globina.meritve: num [1:7] 7.6 8.5 10.4 17.4 12.5 15.5 16.5 ..$ E0 : num [1:7] 4109 2533 491 810 2374 ... ..$ Eur1 : num [1:7] 6194 4713 605 1473 NA ... ..$ Eur2 : num [1:7] 3665 7216 266 4794 7387 ... ..$ Eur3 : num [1:7] 3221 3545 920 3347 6768 ... ..$ H : num [1:7] 8 5.9 5.9 6.9 9.3 10.9 10 ..$ Mpl : num [1:7] 61.9 136.7 19.9 96.4 178.5 ... ..$ class : int [1:7] 1 1 1 1 1 1 1 . . .
But how would I acces them (i.e. to draw a plot for each data.frame for each data.frame in a list)? Thanks,m -----Original Message----- From: David Winsemius [mailto:dwinsem...@comcast.net] Sent: Saturday, October 30, 2010 8:24 PM To: Matevž Pavlič Cc: r-help@r-project.org Subject: Re: [R] for loop On Oct 30, 2010, at 2:07 PM, Matevž Pavlič wrote: > Hi, > > I know this is probalby a very trivial thing to do for most of the R > users, but since I just strated using it I have some problems.... > > I have a data.frame with a field called "razred". This field has > values from 1 up to 15. > > Is it possible to create a for loop that would create a new data frame > for each of the "razred" values. The R-way would be to use the split function and leave the result in a list to which the same operation could be also repeatedly performed using lapply. ?split And take a look at the fourth example applying split to the builtin airquality dataframe. The plyr package also provides functions on dataframes. -- David Winsemius, MD West Hartford, CT ______________________________________________ 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.
