Re: [R] Running R Script on a Sequence of Files

Thanks a lot! On Fri, Dec 5, 2008 at 5:54 PM, Gabor Grothendieck <[EMAIL PROTECTED]> wrote: > Try this: > > dir()[!file.info(dir())$isdir] > > > On Fri, Dec 5, 2008 at 2:30 PM, Gustavo Carvalho > <[EMAIL PROTECTED]> wrote: >> Is there a way to list only the files in a given directory without >> pa

Re: [R] Running R Script on a Sequence of Files

It seems that you have 900 files with the same parameters in each file (I might be reading more between the lines here than you inferred). However if this is the case, why not import each of the files into a common database and then link the database using ODBC connectivity options. If that is pra

Re: [R] Running R Script on a Sequence of Files

eers, > Jagat > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > On Behalf Of Ajay ohri > Sent: Friday, December 05, 2008 12:59 PM > To: Chris Poliquin > Cc: r-help@r-project.org > Subject: Re: [R] Running R Script on a Sequence of Files &g

Re: [R] Running R Script on a Sequence of Files

punt - you can always keep possession of the ball ... :-) Cheers, Jagat -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ajay ohri Sent: Friday, December 05, 2008 12:59 PM To: Chris Poliquin Cc: r-help@r-project.org Subject: Re: [R] Running R Script on a Se

Re: [R] Running R Script on a Sequence of Files

Try this: dir()[!file.info(dir())$isdir] On Fri, Dec 5, 2008 at 2:30 PM, Gustavo Carvalho <[EMAIL PROTECTED]> wrote: > Is there a way to list only the files in a given directory without > passing pattern="..." to list.files()? > > On Fri, Dec 5, 2008 at 5:10 PM, Kyle. <[EMAIL PROTECTED]> wrote:

Re: [R] Running R Script on a Sequence of Files

Is there a way to list only the files in a given directory without passing pattern="..." to list.files()? On Fri, Dec 5, 2008 at 5:10 PM, Kyle. <[EMAIL PROTECTED]> wrote: > Thanks, Barry. I'll use that in the future. > > > ---Kyle. > > On Fri, Dec 5, 2008 at 11:01 AM, Barry Rowlingson < > [EMAIL P

Re: [R] Running R Script on a Sequence of Files

> I can't believe the two 'solutions' already posted. It's easy: Me neither. > > ?list.files That's what I would use, too. If the OP is on a UNIX platform, run the R-script in a loop in the shell is an alternative. Something like this (bourne shell syntax): for datafile in *.csv ; do

Re: [R] Running R Script on a Sequence of Files

Use dir to get the names and then lapply over them with a custom anonymous function where L is a list of the returned values: # assumes file names are those in # current directory that end in .dat filenames <- dir(pattern = "\\.dat$") L <- lapply(filenames, function(x) { DF <- read.table(x, ...

Re: [R] Running R Script on a Sequence of Files

Thanks, Barry. I'll use that in the future. ---Kyle. On Fri, Dec 5, 2008 at 11:01 AM, Barry Rowlingson < [EMAIL PROTECTED]> wrote: > 2008/12/5 Chris Poliquin <[EMAIL PROTECTED]>: > > Hi, > > > > I have about 900 files that I need to run the same R script on. I looked > > over the R Data Import

Re: [R] Running R Script on a Sequence of Files

.files gives details. -- Bert Gunter -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Chris Poliquin Sent: Friday, December 05, 2008 10:02 AM To: r-help@r-project.org Subject: [R] Running R Script on a Sequence of Files Hi, I have about 900 files that I need to r

Re: [R] Running R Script on a Sequence of Files

2008/12/5 Chris Poliquin <[EMAIL PROTECTED]>: > Hi, > > I have about 900 files that I need to run the same R script on. I looked > over the R Data Import/Export Manual and couldn't come up with a way to > read in a sequence of files. > > The files all have unique names and are in the same directo

Re: [R] Running R Script on a Sequence of Files

This is almost a macro problem. It could be done in SAS language using the WPS product (660 USD) I think. It is a familiar problem and I would be quite interested in the result. Is there any concept of Macros in R or a package to do the same. Regards, Ajay On Fri, Dec 5, 2008 at 11:31 PM, Chris

Re: [R] Running R Script on a Sequence of Files

Have you thought about using one of the Python/R interface modules? http://www.omegahat.org/RSPython/ http://rpy.sourceforge.net/ Admittedly, I have not had much success in getting these to work on my machine, but I know others who have. Kyle H. Ambert Graduate Student Department of Medical In

[R] Running R Script on a Sequence of Files

Hi, I have about 900 files that I need to run the same R script on. I looked over the R Data Import/Export Manual and couldn't come up with a way to read in a sequence of files. The files all have unique names and are in the same directory. What I want to do is: 1) Create a list of the