[R] How to....

[jim holtman]

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 <jiamei at princeton.edu> 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 at 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?