Bullseye ! thanks a lot Sundar -----Original Message----- From: Sundar Dorai-Raj [mailto:sdorai...@gmail.com] Sent: 09 February 2009 00:31 To: glenn Cc: r-help@r-project.org Subject: Re: [R] sapply
I'm not sure what you really want, so perhaps a simple example would help (i.e. what a sample of the input looks like and what the output you need looks like). My guess would be sapply(df, diff) but again, I'm not sure. --sundar On Sun, Feb 8, 2009 at 4:24 PM, glenn <g1enn.robe...@btinternet.com> wrote: > Newbie question sorry (have tried the help pages I promise) > > > > I have a dataframe (date,stockprice) say and looking how I might get the > return of: dataframe (difference in days, change in stock price) using > sapply - I require a very simple function and don't really want to go down > the zoo and quant mod route > > > > Regards > > > > glenn > > > [[alternative HTML version deleted]] > > ______________________________________________ > 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.
