Re: [R] read.table with numeric row names
Hi Peter, I copied the data from your email and run it again. dat1-read.table(text= 2.5 3.6 7.1 7.9 100 3 4 2 3 200 3.1 4 3 3 300 2.2 3.3 2 4 ,sep=,header=TRUE) dat1 X2.5 X3.6 X7.1 X7.9 100 3.0 4.0 2 3 200 3.1 4.0 3 3 300 2.2 3.3 2 4 colnames(dat1)-gsub(^[X](.*),\\1,colnames(dat1)) I am not sure what happened with your end. May be you could try readtable(, fill=TRUE) I guess Chi was able to read it as I understood from his email: (Thanks. It works very good.Chi A.K. - Original Message - From: peter dalgaard pda...@gmail.com To: arun smartpink...@yahoo.com Cc: kexinz zhangchic...@gmail.com; R help r-help@r-project.org Sent: Friday, July 13, 2012 10:27 AM Subject: Re: [R] read.table with numeric row names On Jul 13, 2012, at 04:27 , arun wrote: Hello, I saw your reply in nabble. Sorry about that. I thought the dataset had only few columns. #You can read first line of a file using: readLines(foo.txt,n=1)[1] #The more generic colname substitution dat1-read.table(text= 2.5 3.6 7.1 7.9 100 3 4 2 3 200 3.1 4 3 3 300 2.2 3.3 2 4 ,sep=,header=TRUE) (This didn't survive too well in mail: dat1-read.table(text= + 2.5 3.6 7.1 7.9 + 100 3 4 2 3 + 200 3.1 4 3 3 + 300 2.2 3.3 2 4 + ,sep=,header=TRUE) Error in read.table(text = \n 2.5 3.6 7.1 7.9 \n 100 3 4 2 3 \n 200 3.1 4 3 3 \n 300 2.2 3.3 2 4 \n , : more columns than column names Not sure exactly what happened there...) #The code should remove the X from the column names (row names?) However, adding check.names=FALSE should be more expedient. colnames(dat1)-gsub(^[X](.*),\\1,colnames(dat1)) dat1 2.5 3.6 7.1 7.9 100 3.0 4.0 2 3 200 3.1 4.0 3 3 300 2.2 3.3 2 4 plot(colMeans(dat1)~as.numeric(names(dat1)),xlab=Column_Name,ylab=Column_Mean) A.K. - Original Message - From: kexinz zhangchic...@gmail.com To: r-help@r-project.org Cc: Sent: Thursday, July 12, 2012 2:50 PM Subject: [R] read.table with numeric row names I have a text file like this 2.5 3.6 7.1 7.9 100 3 4 2 3 200 3.1 4 3 3 300 2.2 3.3 2 4 I used r - read.table(a.txt, header=T) The row names becomes X2.5, X3.6... What I need is the row names are numeric, so I can use the row names as numbers on x-axis for plotting. e.g. plot(colMeans(r)~names(r)), something like this. How to do this? Thanks. -- View this message in context: http://r.789695.n4.nabble.com/read-table-with-numeric-row-names-tp4636342.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org 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. __ R-help@r-project.org 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. -- Peter Dalgaard, Professor Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Email: pd@cbs.dk Priv: pda...@gmail.com __ R-help@r-project.org 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] read.table with numeric row names
On Jul 13, 2012, at 04:27 , arun wrote: Hello, I saw your reply in nabble. Sorry about that. I thought the dataset had only few columns. #You can read first line of a file using: readLines(foo.txt,n=1)[1] #The more generic colname substitution dat1-read.table(text= 2.5 3.6 7.1 7.9 100 3 4 23 200 3.1 4 3 3 300 2.2 3.3 24 ,sep=,header=TRUE) (This didn't survive too well in mail: dat1-read.table(text= + 2.5 3.6 7.1 7.9 + 100 3 4 23 + 200 3.1 4 3 3 + 300 2.2 3.3 24 + ,sep=,header=TRUE) Error in read.table(text = \n 2.5 3.6 7.1 7.9 \n 100 3 4 23 \n 200 3.1 4 3 3 \n 300 2.2 3.3 24 \n , : more columns than column names Not sure exactly what happened there...) #The code should remove the X from the column names (row names?) However, adding check.names=FALSE should be more expedient. colnames(dat1)-gsub(^[X](.*),\\1,colnames(dat1)) dat1 2.5 3.6 7.1 7.9 100 3.0 4.0 2 3 200 3.1 4.0 3 3 300 2.2 3.3 2 4 plot(colMeans(dat1)~as.numeric(names(dat1)),xlab=Column_Name,ylab=Column_Mean) A.K. - Original Message - From: kexinz zhangchic...@gmail.com To: r-help@r-project.org Cc: Sent: Thursday, July 12, 2012 2:50 PM Subject: [R] read.table with numeric row names I have a text file like this 2.5 3.6 7.1 7.9 100 3 4 2 3 200 3.1 4 3 3 300 2.2 3.3 2 4 I used r - read.table(a.txt, header=T) The row names becomes X2.5, X3.6... What I need is the row names are numeric, so I can use the row names as numbers on x-axis for plotting. e.g. plot(colMeans(r)~names(r)), something like this. How to do this? Thanks. -- View this message in context: http://r.789695.n4.nabble.com/read-table-with-numeric-row-names-tp4636342.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org 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. __ R-help@r-project.org 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. -- Peter Dalgaard, Professor Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Email: pd@cbs.dk Priv: pda...@gmail.com __ R-help@r-project.org 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] read.table with numeric row names
Try this: x - read.table(text = 2.5 3.6 7.1 7.9 + 100 3 4 2 3 + 200 3.1 4 3 3 + 300 2.2 3.3 2 4, header = TRUE, check.names = FALSE) x 2.5 3.6 7.1 7.9 100 3.0 4.0 2 3 200 3.1 4.0 3 3 300 2.2 3.3 2 4 names(x) [1] 2.5 3.6 7.1 7.9 On Thu, Jul 12, 2012 at 2:50 PM, kexinz zhangchic...@gmail.com wrote: I have a text file like this 2.5 3.6 7.1 7.9 100 3 4 2 3 200 3.1 4 3 3 300 2.2 3.3 2 4 I used r - read.table(a.txt, header=T) The row names becomes X2.5, X3.6... What I need is the row names are numeric, so I can use the row names as numbers on x-axis for plotting. e.g. plot(colMeans(r)~names(r)), something like this. How to do this? Thanks. -- View this message in context: http://r.789695.n4.nabble.com/read-table-with-numeric-row-names-tp4636342.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org 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 Data Munger Guru What is the problem that you are trying to solve? Tell me what you want to do, not how you want to do it. __ R-help@r-project.org 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] read.table with numeric row names
BTW, is there an R command to read just the first line of the file? scan() or readLines() will read as many lines of the file as you want. Use the file() function to open a file connection so a subsequent read.table() will start where scan() or readLines() finished. E.g., tfile - tempfile() cat(file=tfile, 2.5 3.6 7.1 7.9 + 100 3 4 23 + 200 3.1 4 3 3 + 300 2.2 3.3 24 + ) # now tfile looks like your example file read.table(header=TRUE, tfile) # easy way, but not what you want X2.5 X3.6 X7.1 X7.9 100 3.0 4.023 200 3.1 4.033 300 2.2 3.324 fileConn - file(tfile, open=r) scan(fileConn, what=0.0, nlines=1) Read 4 items [1] 2.5 3.6 7.1 7.9 read.table(header=FALSE, fileConn) V1 V2 V3 V4 V5 1 100 3.0 4.0 2 3 2 200 3.1 4.0 3 3 3 300 2.2 3.3 2 4 str(.Last.value) 'data.frame': 3 obs. of 5 variables: $ V1: int 100 200 300 $ V2: num 3 3.1 2.2 $ V3: num 4 4 3.3 $ V4: int 2 3 2 $ V5: int 3 3 4 close(fileConn) # clean up Bill Dunlap Spotfire, TIBCO Software wdunlap tibco.com -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of kexinz Sent: Thursday, July 12, 2012 2:59 PM To: r-help@r-project.org Subject: Re: [R] read.table with numeric row names Thanks Yasir, this helps a lot. BTW, is there an R command to read just the first line of the file? Yasir Kaheil wrote just do this: colnames(r)-substr(colnames(r),2,nchar(colnames(r))) This will remove the X. Later when you want to use the headed to plot something, cast it as numeric: plot(colMeans(r)~as.numeric(colnames(r))) -- View this message in context: http://r.789695.n4.nabble.com/read-table-with- numeric-row-names-tp4636342p4636377.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org 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. __ R-help@r-project.org 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] read.table with numeric row names
Thanks all you guys' help! -- View this message in context: http://r.789695.n4.nabble.com/read-table-with-numeric-row-names-tp4636342p4636446.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org 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] read.table with numeric row names
On Jul 13, 2012, at 17:59 , arun wrote: Hi Peter, I copied the data from your email and run it again. dat1-read.table(text= 2.5 3.6 7.1 7.9 100 3 4 23 200 3.1 4 3 3 300 2.2 3.3 24 ,sep=,header=TRUE) dat1 X2.5 X3.6 X7.1 X7.9 100 3.0 4.023 200 3.1 4.033 300 2.2 3.324 colnames(dat1)-gsub(^[X](.*),\\1,colnames(dat1)) I am not sure what happened with your end. May be you could try readtable(, fill=TRUE) More likely, I need something to filter out oddball characters inserted by Nabble or one of the mail agents. Watch this: Cut+paste from arun (22:17), Chi (07:09), and arun (07:08) dat1-read.table(text= + 2.5 3.6 7.1 7.9 + 100 3 4 23 + 200 3.1 4 3 3 + 300 2.2 3.3 24 + ,sep=,header=TRUE) dat1-read.table(text= + 2.5 3.6 7.1 7.9 + 100 3 4 23 + 200 3.1 4 3 3 + 300 2.2 3.3 24 + ,sep=,header=TRUE) dat1-read.table(text= + 2.5 3.6 7.1 7.9 + 100 3 4 23 + 200 3.1 4 3 3 + 300 2.2 3.3 24 + ,sep=,header=TRUE) Error in read.table(text = \n 2.5 3.6 7.1 7.9 \n 100 3 4 23 \n 200 3.1 4 3 3 \n 300 2.2 3.3 24 \n , : more columns than column names The clue seems to be that the 3rd variant has a trailing space added to each line. No big deal, just drove me up the wall for while this afternoon... I guess Chi was able to read it as I understood from his email: (Thanks. It works very good.Chi A.K. - Original Message - From: peter dalgaard pda...@gmail.com To: arun smartpink...@yahoo.com Cc: kexinz zhangchic...@gmail.com; R help r-help@r-project.org Sent: Friday, July 13, 2012 10:27 AM Subject: Re: [R] read.table with numeric row names On Jul 13, 2012, at 04:27 , arun wrote: Hello, I saw your reply in nabble. Sorry about that. I thought the dataset had only few columns. #You can read first line of a file using: readLines(foo.txt,n=1)[1] #The more generic colname substitution dat1-read.table(text= 2.5 3.6 7.1 7.9 100 3 4 23 200 3.1 4 3 3 300 2.2 3.3 24 ,sep=,header=TRUE) (This didn't survive too well in mail: dat1-read.table(text= + 2.5 3.6 7.1 7.9 + 100 3 4 23 + 200 3.1 4 3 3 + 300 2.2 3.3 24 + ,sep=,header=TRUE) Error in read.table(text = \n 2.5 3.6 7.1 7.9 \n 100 3 4 2 3 \n 200 3.1 4 3 3 \n 300 2.2 3.3 24 \n , : more columns than column names Not sure exactly what happened there...) #The code should remove the X from the column names (row names?) However, adding check.names=FALSE should be more expedient. colnames(dat1)-gsub(^[X](.*),\\1,colnames(dat1)) dat1 2.5 3.6 7.1 7.9 100 3.0 4.0 2 3 200 3.1 4.0 3 3 300 2.2 3.3 2 4 plot(colMeans(dat1)~as.numeric(names(dat1)),xlab=Column_Name,ylab=Column_Mean) A.K. - Original Message - From: kexinz zhangchic...@gmail.com To: r-help@r-project.org Cc: Sent: Thursday, July 12, 2012 2:50 PM Subject: [R] read.table with numeric row names I have a text file like this 2.5 3.6 7.1 7.9 100 3 4 2 3 200 3.1 4 3 3 300 2.2 3.3 2 4 I used r - read.table(a.txt, header=T) The row names becomes X2.5, X3.6... What I need is the row names are numeric, so I can use the row names as numbers on x-axis for plotting. e.g. plot(colMeans(r)~names(r)), something like this. How to do this? Thanks. -- View this message in context: http://r.789695.n4.nabble.com/read-table-with-numeric-row-names-tp4636342.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org 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. __ R-help@r-project.org 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. -- Peter Dalgaard, Professor Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Email: pd@cbs.dk Priv: pda...@gmail.com -- Peter Dalgaard, Professor, Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Email: pd@cbs.dk Priv: pda...@gmail.com __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R
[R] read.table with numeric row names
I have a text file like this 2.5 3.6 7.1 7.9 100 3 4 2 3 200 3.1 4 3 3 300 2.2 3.3 2 4 I used r - read.table(a.txt, header=T) The row names becomes X2.5, X3.6... What I need is the row names are numeric, so I can use the row names as numbers on x-axis for plotting. e.g. plot(colMeans(r)~names(r)), something like this. How to do this? Thanks. -- View this message in context: http://r.789695.n4.nabble.com/read-table-with-numeric-row-names-tp4636342.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org 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] read.table with numeric row names
Hi, Try this: dat1-read.table(text= 2.5 3.6 7.1 7.9 100 3 4 2 3 200 3.1 4 3 3 300 2.2 3.3 2 4 ,sep=,header=TRUE) #Either colnames(dat1)-c(2.5,3.6,7.1,7.9) #or colnames(dat1)-c(2.5,3.6,7.1,7.9) #produce character column names is.character(colnames(dat1)) [1] TRUE is.numeric(colnames(dat1)) [1] FALSE dat1 2.5 3.6 7.1 7.9 100 3.0 4.0 2 3 200 3.1 4.0 3 3 300 2.2 3.3 2 4 A.K. - Original Message - From: kexinz zhangchic...@gmail.com To: r-help@r-project.org Cc: Sent: Thursday, July 12, 2012 2:50 PM Subject: [R] read.table with numeric row names I have a text file like this 2.5 3.6 7.1 7.9 100 3 4 2 3 200 3.1 4 3 3 300 2.2 3.3 2 4 I used r - read.table(a.txt, header=T) The row names becomes X2.5, X3.6... What I need is the row names are numeric, so I can use the row names as numbers on x-axis for plotting. e.g. plot(colMeans(r)~names(r)), something like this. How to do this? Thanks. -- View this message in context: http://r.789695.n4.nabble.com/read-table-with-numeric-row-names-tp4636342.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org 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. __ R-help@r-project.org 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] read.table with numeric row names
just do this: colnames(r)-substr(colnames(r),2,nchar(colnames(r))) This will remove the X. Later when you want to use the headed to plot something, cast it as numeric: plot(colMeans(r)~as.numeric(colnames(r))) - Yasir Kaheil -- View this message in context: http://r.789695.n4.nabble.com/read-table-with-numeric-row-names-tp4636342p4636354.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org 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] read.table with numeric row names
Thanks, but I don't want to specify the column names by hand, since I have a lot of similar files. arun kirshna wrote Hi, Try this: dat1-read.table(text= 2.5 3.6 7.1 7.9 100 3 4 2 3 200 3.1 4 3 3 300 2.2 3.3 2 4 ,sep=,header=TRUE) #Either colnames(dat1)-c(2.5,3.6,7.1,7.9) #or colnames(dat1)-c(2.5,3.6,7.1,7.9) #produce character column names is.character(colnames(dat1)) [1] TRUE is.numeric(colnames(dat1)) [1] FALSE dat1 2.5 3.6 7.1 7.9 100 3.0 4.0 2 3 200 3.1 4.0 3 3 300 2.2 3.3 2 4 A.K. -- View this message in context: http://r.789695.n4.nabble.com/read-table-with-numeric-row-names-tp4636342p4636378.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org 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] read.table with numeric row names
Thanks Yasir, this helps a lot. BTW, is there an R command to read just the first line of the file? Yasir Kaheil wrote just do this: colnames(r)-substr(colnames(r),2,nchar(colnames(r))) This will remove the X. Later when you want to use the headed to plot something, cast it as numeric: plot(colMeans(r)~as.numeric(colnames(r))) -- View this message in context: http://r.789695.n4.nabble.com/read-table-with-numeric-row-names-tp4636342p4636377.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org 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] read.table with numeric row names
Hello, I saw your reply in nabble. Sorry about that. I thought the dataset had only few columns. #You can read first line of a file using: readLines(foo.txt,n=1)[1] #The more generic colname substitution dat1-read.table(text= 2.5 3.6 7.1 7.9 100 3 4 2 3 200 3.1 4 3 3 300 2.2 3.3 2 4 ,sep=,header=TRUE) #The code should remove the X from the column names (row names?) colnames(dat1)-gsub(^[X](.*),\\1,colnames(dat1)) dat1 2.5 3.6 7.1 7.9 100 3.0 4.0 2 3 200 3.1 4.0 3 3 300 2.2 3.3 2 4 plot(colMeans(dat1)~as.numeric(names(dat1)),xlab=Column_Name,ylab=Column_Mean) A.K. - Original Message - From: kexinz zhangchic...@gmail.com To: r-help@r-project.org Cc: Sent: Thursday, July 12, 2012 2:50 PM Subject: [R] read.table with numeric row names I have a text file like this 2.5 3.6 7.1 7.9 100 3 4 2 3 200 3.1 4 3 3 300 2.2 3.3 2 4 I used r - read.table(a.txt, header=T) The row names becomes X2.5, X3.6... What I need is the row names are numeric, so I can use the row names as numbers on x-axis for plotting. e.g. plot(colMeans(r)~names(r)), something like this. How to do this? Thanks. -- View this message in context: http://r.789695.n4.nabble.com/read-table-with-numeric-row-names-tp4636342.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org 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. __ R-help@r-project.org 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] read.table with numeric row names
Thanks. It works very good. Chi On Thu, Jul 12, 2012 at 7:27 PM, arun smartpink...@yahoo.com wrote: Hello, I saw your reply in nabble. Sorry about that. I thought the dataset had only few columns. #You can read first line of a file using: readLines(foo.txt,n=1)[1] #The more generic colname substitution dat1-read.table(text= 2.5 3.6 7.1 7.9 100 3 4 23 200 3.1 4 3 3 300 2.2 3.3 24 ,sep=,header=TRUE) #The code should remove the X from the column names (row names?) colnames(dat1)-gsub(^[X](.*),\\1,colnames(dat1)) dat1 2.5 3.6 7.1 7.9 100 3.0 4.0 2 3 200 3.1 4.0 3 3 300 2.2 3.3 2 4 plot(colMeans(dat1)~as.numeric(names(dat1)),xlab=Column_Name,ylab=Column_Mean) A.K. - Original Message - From: kexinz zhangchic...@gmail.com To: r-help@r-project.org Cc: Sent: Thursday, July 12, 2012 2:50 PM Subject: [R] read.table with numeric row names I have a text file like this 2.5 3.6 7.1 7.9 100 3 4 2 3 200 3.1 4 3 3 300 2.2 3.3 2 4 I used r - read.table(a.txt, header=T) The row names becomes X2.5, X3.6... What I need is the row names are numeric, so I can use the row names as numbers on x-axis for plotting. e.g. plot(colMeans(r)~names(r)), something like this. How to do this? Thanks. [[alternative HTML version deleted]] __ R-help@r-project.org 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.
