You can keep each dataframe as a separate file and process them that way. You can look into storing in a relational database or using filehash. It all depends on how you want to process the data later.
On Tue, Dec 29, 2009 at 8:40 AM, Hao Cen <h...@andrew.cmu.edu> wrote: > Hi, > > I currently combine multiple processed data (data frame) into a list and > save the list as ".rda" using the save command. When new data come, I load > the rda file, process the new data into a data frame, append the data > frame to the end of the list, and save the whole list to the disk. The > loading and saving steps are quite time consuming. Since I don't need to > change the old data in the list when new data come, I wonder if there is > an efficient way to update the rda efficiently, e.g. appending the new > data to the rda file directly without loading the whole rda file? > > Any suggestions would be appreciated. > > thanks > > Jeff > > ______________________________________________ > 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<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 that you are trying to solve? [[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.
