[R] Inputting Co-ordinates

[White.Denis@epamail.epa.gov]

> Hello
>
> I am trying to input some co-ordinate sets into R of the form x,y by
using
> lists.  The command I am using is:
>
> p1 <- list(x=c(3445,563,646), y=c(234,567,456))
>
> However the actual co-ordinate sets that I am trying to input have 305
> points each and I think that the program will not accept a command
that is
> as long as necessary.  Is this so?  If this is the case can you tell
me how
> to read the points in as a table but so that I can call on them as
being p1,
> later in the program?
>
> Many Thanks
> Louise

One easy way is to enter the coordinates into a text file with a text
editor so that the file looks like:

x y
3445 234
563 567
646 456
...

and then read into R with a statement

p1 <- read.table ("file.name", header=TRUE)



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