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
Can you provide an example of your data. Assuming that you have a .cvs file
and the column names are 'x' and 'y' and you have used 'read.csv', then you
would have:
(something$x + something$y) / 2
On 6/5/07, tronter [EMAIL PROTECTED] wrote:
Hello
I have an Excel file with x-y data. I
tt-read.table(C:/temp/test.csv, header=T, sep=,)
# Try:
tt$x
tt$y
# OR
tt[x]
tt[y]
# OR
tt[[x]]
tt[[y]]
# OR
tt[1]
tt[2]
tt[[1]]
tt[[2]]
# Is this what you want?
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
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
Or read ?attach
attach(something)
(x+y)/2
detach(something)
jim holtman wrote:
Can you provide an example of your data. Assuming that you have a .cvs file
and the column names are 'x' and 'y' and you have used 'read.csv', then you
would have:
(something$x + something$y) / 2
