PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Some idea of the the data looks like and what you want to do with it would be helpful. ?read.csv ?mean ?tapply On Tue, Jul 22, 2008 at 4:31 PM, Jia Ying Mei <[EMAIL PROTECTED]> wrote: > Hi everyone, > > I am not new to R, but its been over a year since I've used it, so I don't > remember how to do some things. > > I have a data set (in excel currently, but will be converted to text), that > has date, country and price, with a price for every country for every date. > I need to find the mean and median of the interval between price changes for > each country and the mean and median percentage change for each price change > within the data for a single country. > > How should I go about doing this? I'd appreciate any help. > > Jia Ying Mei > > ______________________________________________ > 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 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.
