[R] R: x-y data
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 -- View this message in context: http://www.nabble.com/R%3A-x-y-data-tf3874502.html#a10978448 Sent from the R help mailing list archive at Nabble.com. __ R-help@stat.math.ethz.ch 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.
Re: [R] R: x-y data
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 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 -- View this message in context: http://www.nabble.com/R%3A-x-y-data-tf3874502.html#a10978448 Sent from the R help mailing list archive at Nabble.com. __ R-help@stat.math.ethz.ch 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. -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem you are trying to solve? [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch 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.
Re: [R] R: x-y data
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 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? __ R-help@stat.math.ethz.ch 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.
Re: [R] R: x-y data
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 [EMAIL PROTECTED] 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 -- __ R-help@stat.math.ethz.ch 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.
Re: [R] R: x-y data
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 On 6/5/07, tronter [EMAIL PROTECTED] 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? -- --- Jeff NewmillerThe . . Go Live... DCN:[EMAIL PROTECTED]Basics: ##.#. ##.#. Live Go... Live: OO#.. Dead: OO#.. Playing Research Engineer (Solar/BatteriesO.O#. #.O#. with /Software/Embedded Controllers) .OO#. .OO#. rocks...1k __ R-help@stat.math.ethz.ch 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.
