On Mon, Nov 10, 2014 at 7:12 AM, Aditya Singh <aps...@yahoo.com> wrote:
> Hi,
> I have 2 queries:
> 1. What function to use to read all the files in a directory to a vector
> in R code?
> 2. What function to use to coerce character string into numeric?
> As a help to others, I figured out to use setwd("C:/....") to set working
> directory!
> Aditya
>
First, please don't post in HTML. It is contrary to forum policy. Thanks.
Answer 1: you can get a list of the names of all the files using the
list.files() function. Do a ?list.files for more information.
Answer 2: If I understand your question correctly, then I'd use
as.numeric() .
Suggestion 1: Get & read a good book on R programming. These were very
basic questions. I'd strongly suggest "Advanced R" by Hadley Wickham. You
can order if Amazon.com, or read it (for free!) here:
http://adv-r.had.co.nz/
Another good one is "The Art of R Programming" by Norman Matloff. This
later one is what I used, but that's mainly because Hadley's book hadn't
been written (or maybe published) when I was first learning R.
Suggestion 2: If you haven't already, I would strongly recommend getting &
installing RStudio. It is free (as in beer, which is a curious phrase
because beer isn't usually free). http://www.rstudio.com
--
The temperature of the aqueous content of an unremittingly ogled
culinary vessel will not achieve 100 degrees on the Celsius scale.
Maranatha! <><
John McKown
[[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.
