R help - Apr 2005 - newbie questions...

just started using r.  a few questions I can't figure out.

first, when loading in a text file, I can do it from the web but not
from hard drive.
Fil<- 'http://www.test.com/file.txt'    -- works
Fil<- 'c:\program files\file.txt' --does not. what am i doing wrong??

also, how do you plot a graph of a time series that is lagged?  
i.e., plot(sp,type='l')     but say for sp[t-1] ??

On 4/28/05, Jonathan Q. <jqm475@gmail.com> wrote: 
> 
> just started using r. a few questions I can't figure out.
> 
> first, when loading in a text file, I can do it from the web but not
> from hard drive.
> Fil<- 'http://www.test.com/file.txt' -- works
> Fil<- 'c:\program files\file.txt' --does not. what am i doing
wrong??
  \ has special meaning to R. Either use \\ or use /, e.g.
Fil <- "c:/Program Files/file.txt"

also, how do you plot a graph of a time series that is
lagged?
> i.e., plot(sp,type='l') but say for sp[t-1] ??
  x <- ts((1:5)^2) # create ts object, i.e. time series, so you can use lag 
on it
ts.plot(x, lag(x), col = c("blue", "red"))

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