I am not sure what you are trying to assign a value to '200706183<-'; does not look like a valid object name. This should work:
x200706183<-subset(AllData, ID == 200706183) Notice the use of the '==' for the logical compare. On Thu, Apr 9, 2009 at 8:58 PM, Paul Warren Simonin <paul.simo...@uvm.edu> wrote: > Hello, > > I have a question regarding how to subset/select parts of a data frame > (matrix) in order to plot data associated only with this subset. > Specifically I have a large data frame in which one column contains ID > values (dates), and other columns contain data I would like to plot > (temperature, light, etc.). I would like to break up this large matrix so as > to plot data associated with specific ID values (dates) separately. I have > learned of several commands that supposedly subset matrices in this manner > and have tried the following code with no success: > > 200706183<-subset(AllData, ID = 200706183) > 200706183<-gx.subset(AllData, ID == 200706183) > 200706183<-subset(x=AllData, AllData$ID = 200706183) > 200706183<-gx.subset(x=AllData, AllData$ID == 200706183) > > In using this code my plan was to create smaller data frame objects which I > could then plot. My first question, though, is whether this is the correct > approach. Is there a more efficient way I can create plots conditional on > certain criteria such as "code = 200706183" ? > If I do need to first create separate smaller data frames, how do I go > about doing this? Am I missing something in the above commands? > Any other advice is certainly welcome too, as I admit to being a bit new to > R. Thank you very much for any answers, tips, suggestions, etc.! > > Best wishes, > Paul Simonin > > -- > Paul W. Simonin > Graduate Research Assistant, MS Program > Vermont Cooperative Fish and Wildlife Research Unit > The Rubenstein School of Environment and Natural Resources > University of Vermont > 81 Carrigan Dr. > Burlington, VT 05405 > Ph:802-656-3153 > > ______________________________________________ > 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. > -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve? ______________________________________________ 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.