[R] sapply

glenn g1enn.roberts at btinternet.com
Mon Feb 9 01:31:46 CET 2009

Bullseye ! thanks a lot Sundar

-----Original Message-----
From: Sundar Dorai-Raj [mailto:sdorairaj at gmail.com] 
Sent: 09 February 2009 00:31
To: glenn
Cc: r-help at 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.


On Sun, Feb 8, 2009 at 4:24 PM, glenn <g1enn.roberts at 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 at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> and provide commented, minimal, self-contained, reproducible code.

More information about the R-help mailing list