I'm new to R, using it for an engineering stats class, and the first project is focused on creating data frames and plotting graphs. So far I have imported a set of data from a text file and saved it as a variable (using the read.table() function). One of the columns of the data consists of years, and I'm supposed to create a data frame that only consists the the date from one given year (ie. I need to scan the Year column, pick out the specific year, and include those rows). I'm pretty sure I have to use data.frame() to do this, but I don't know what arguments would pick out rows from a particular year (and keep the headers of the columns intact in the new data frame). Beyond this, I need to plot it and export it to an image file, which I can do myself.
Can someone please tell me the arguments to data.frame() that would achieve this (or better yet, point me to a good list of functions and arguments in addition to this). Thanks for your help, Josh -- View this message in context: http://www.nabble.com/Creating-data-frame-from-existing-data-frame-tp19449005p19449005.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
