[R] R: x-y data

John Kane jrkrideau at yahoo.ca
Wed Jun 6 17:15:46 CEST 2007


There are a couple of ways but I think you need to
read  about R . Have a look at Managing data
http://cran.r-project.org/doc/contrib/Lemon-kickstart/index.html

and / or read the Intro to R manual available on CRAN
or probably from the R help icon. 

you have a data.frame DF you can assign names to the
variables 

?names
names(DF) <- c("x", "y") and attach the data.frame

?attach

or you can reference the columns

as DF[,1] and DF[,2]



--- tronter <pev340002003 at yahoo.com> wrote:

> 
> Hello
> 
> I have an Excel file with x-y data. I saved this
> file as a cvs file. Then I
> used the read.table() function to read the data into
> R. If I have a formula
> like (x+y)/2, how would I access x and y in R? I
> have the table named as
> something. But how do I access the individual
> columns if I want to plug them
> into the formula?
> 
> Thanks
> --



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