Tena koe Allie Does
sapply(myframe, class) do what you want? Peter Alspach > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r- > project.org] On Behalf Of Alexander Shenkin > Sent: Thursday, 20 May 2010 8:19 a.m. > To: r-help@r-project.org > Subject: [R] export dataframe's column classes to a list > > Hi Folks, > > I want to export a dataframe's column classes to a list so that I can > reinstantiate the dataframe from a CSV file in the future. (I know > about save(), which I'm using in addition to this). > > what I want to do is the following: > write.csv(myframe); > col_classes = get_col_classes(myframe); > write.csv(col_classes, "column_classes") > > ... time passes, R gets closed, etc ... > > col_classes = read.csv("column_classes") > new_myframe = read.csv("myfile.csv", colClasses = col_classes) > > > My question is how to construct the "get_col_classes()" function above. > Any thoughts are greatly appreciated! > > Thanks, > Allie > > -- > Alexander Shenkin > PhD Candidate > School of Natural Resources and Environment > University of Florida > > http://snre.ufl.edu/people/students.asp > > ______________________________________________ > 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. ______________________________________________ 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.