Re: [R] Where to put source code?
Peter- I use emacs and ESS. Google r ess emacs and check out the first few hits. I use a split screen with the R file to edit on the left and get the R output on the right. Single line commands are executed with C-c C-n and selected regions are executed using C-c C-r as well as a bunch of other useful commands for R and, of course, all of the editing power and functionality of emacs. I am using linux, but it is said to work fine on Windows. There is an ESS help list too. HTH, Ron Peter Meilstrup wrote: I'm trying to move from Matlab to R, and I'm stuck even getting started. This sounds to me like the dumbest question in the world but... how does one put R source code in files? Over the last three days I've gone front to back through the Introduction to R and the R Language Definition, and while I'm excited that the language is so Lispish, none of what I read described how to write a function, save the source code in a file, and have it be usable other than directly entering the function definition at the command prompt. How do you edit your functions, where do you put the source files that contain your functions, how do you tell R to use function definitions from a particular file? How do you make incremental changes to your functions while debugging? I have not gone into the documentation about writing packages and extensions other than to glance at them and decide that can't POSSIBLY be the answer I'm looking for. I'm just looking for the local equivalent of (in matlab) writing a function, saving it as functionName.m and then being able to call functionName(). Or in Python of writing a module.py and then typing import module at the prompt. Again this feels like an extraordinarily stupid question. But for some weird reason I'm coming up with nothing in the FAQ or in Rseek. Peter __ 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. R. Burns Physicist (Retired) Oceanside, CA __ 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] Where to put source code?
Or, even more simply: save your commands or functions in a file. You can load them from R using: source(path/to/mystuff.R) Sarah On Sat, Aug 22, 2009 at 6:22 PM, Ron Burnsrrbu...@cox.net wrote: Peter- I use emacs and ESS. Google r ess emacs and check out the first few hits. I use a split screen with the R file to edit on the left and get the R output on the right. Single line commands are executed with C-c C-n and selected regions are executed using C-c C-r as well as a bunch of other useful commands for R and, of course, all of the editing power and functionality of emacs. I am using linux, but it is said to work fine on Windows. There is an ESS help list too. HTH, Ron Peter Meilstrup wrote: I'm trying to move from Matlab to R, and I'm stuck even getting started. This sounds to me like the dumbest question in the world but... how does one put R source code in files? Over the last three days I've gone front to back through the Introduction to R and the R Language Definition, and while I'm excited that the language is so Lispish, none of what I read described how to write a function, save the source code in a file, and have it be usable other than directly entering the function definition at the command prompt. How do you edit your functions, where do you put the source files that contain your functions, how do you tell R to use function definitions from a particular file? How do you make incremental changes to your functions while debugging? I have not gone into the documentation about writing packages and extensions other than to glance at them and decide that can't POSSIBLY be the answer I'm looking for. I'm just looking for the local equivalent of (in matlab) writing a function, saving it as functionName.m and then being able to call functionName(). Or in Python of writing a module.py and then typing import module at the prompt. Again this feels like an extraordinarily stupid question. But for some weird reason I'm coming up with nothing in the FAQ or in Rseek. Peter -- Sarah Goslee http://www.functionaldiversity.org __ 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] Where to put source code?
I'm trying to move from Matlab to R, and I'm stuck even getting started. This sounds to me like the dumbest question in the world but... how does one put R source code in files? Over the last three days I've gone front to back through the Introduction to R and the R Language Definition, and while I'm excited that the language is so Lispish, none of what I read described how to write a function, save the source code in a file, and have it be usable other than directly entering the function definition at the command prompt. How do you edit your functions, where do you put the source files that contain your functions, how do you tell R to use function definitions from a particular file? How do you make incremental changes to your functions while debugging? I have not gone into the documentation about writing packages and extensions other than to glance at them and decide that can't POSSIBLY be the answer I'm looking for. I'm just looking for the local equivalent of (in matlab) writing a function, saving it as functionName.m and then being able to call functionName(). Or in Python of writing a module.py and then typing import module at the prompt. Again this feels like an extraordinarily stupid question. But for some weird reason I'm coming up with nothing in the FAQ or in Rseek. Peter __ 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] Where to put source code?
Hi,
Say you have the following data and functions that you want to reuse,
d = data.frame(1:10)
foo = function(x,y , ...){
plot(x,y, type=l, ...)
}
You may save the code in a file testing.r, noting that in general
data may find a convenient storage format using save(d, file=
mydata.rda). When opening a new R session you can load this code
with ?source,
source(/your/path/to/this/file/testing.r) # or simply
source(testing.r) if you're in the same working directory (see
?getwd)
Similarly you can load the data,
load(mydata.rda)
The code and data are then loaded and available for you to use.
If you find after some time that you have accumulated quite a lot of
functions and data that clutter your workspace, writing a package is a
neat and easy option to organize them, see ?package.skeleton to get
you started.
HTH,
baptiste
2009/8/21 Peter Meilstrup peter.meilst...@gmail.com:
I'm trying to move from Matlab to R, and I'm stuck even getting
started. This sounds to me like the dumbest question in the world
but... how does one put R source code in files? Over the last three
days I've gone front to back through the Introduction to R and the R
Language Definition, and while I'm excited that the language is so
Lispish, none of what I read described how to write a function, save
the source code in a file, and have it be usable other than directly
entering the function definition at the command prompt.
How do you edit your functions, where do you put the source files that
contain your functions, how do you tell R to use function definitions
from a particular file? How do you make incremental changes to your
functions while debugging?
I have not gone into the documentation about writing packages and
extensions other than to glance at them and decide that can't
POSSIBLY be the answer I'm looking for.
I'm just looking for the local equivalent of (in matlab) writing a
function, saving it as functionName.m and then being able to call
functionName(). Or in Python of writing a module.py and then typing
import module at the prompt.
Again this feels like an extraordinarily stupid question. But for some
weird reason I'm coming up with nothing in the FAQ or in Rseek.
Peter
__
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.
--
_
Baptiste Auguié
School of Physics
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK
http://newton.ex.ac.uk/research/emag
__
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] Where to put source code?
Hi, You might be interested in : - this (out of date) page : http://www.sciviews.org/_rgui/ - this (not yet filled) page : http://wiki.r-project.org/rwiki/doku.php?id=guis:projects for a list of potential guis/text editor you can use to write your R code. Romain On 08/21/2009 12:06 PM, Peter Meilstrup wrote: I'm trying to move from Matlab to R, and I'm stuck even getting started. This sounds to me like the dumbest question in the world but... how does one put R source code in files? Over the last three days I've gone front to back through the Introduction to R and the R Language Definition, and while I'm excited that the language is so Lispish, none of what I read described how to write a function, save the source code in a file, and have it be usable other than directly entering the function definition at the command prompt. How do you edit your functions, where do you put the source files that contain your functions, how do you tell R to use function definitions from a particular file? How do you make incremental changes to your functions while debugging? I have not gone into the documentation about writing packages and extensions other than to glance at them and decide that can't POSSIBLY be the answer I'm looking for. I'm just looking for the local equivalent of (in matlab) writing a function, saving it as functionName.m and then being able to call functionName(). Or in Python of writing a module.py and then typing import module at the prompt. Again this feels like an extraordinarily stupid question. But for some weird reason I'm coming up with nothing in the FAQ or in Rseek. Peter -- Romain Francois Professional R Enthusiast +33(0) 6 28 91 30 30 http://romainfrancois.blog.free.fr |- http://tr.im/w33B : Completion for java objects |- http://tr.im/vzip : Code Snippet : List of CRAN packages `- http://tr.im/vsK1 : R parser package on CRAN __ 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] Where to put source code?
On Fri, Aug 21, 2009 at 11:06 AM, Peter
Meilstruppeter.meilst...@gmail.com wrote:
I'm just looking for the local equivalent of (in matlab) writing a
function, saving it as functionName.m and then being able to call
functionName(). Or in Python of writing a module.py and then typing
import module at the prompt.
Again this feels like an extraordinarily stupid question. But for some
weird reason I'm coming up with nothing in the FAQ or in Rseek.
It's a bit of a paradigm shift from the way Matlab and Python do it,
I'm afraid...
In Matlab and Python, the system always goes to the file
representation of the function.
In R, it doesn't. It goes to the R object in the in-memory storage
(aka environment). You update this by running 'source(file.R)'
which executes 'foo = function(...){etc}', thus overwriting the old
function definition.
At the end of an R session, if you save the image (in a .RData
file), then when you restart R with that saved image your function
definitions will be reloaded too - but from the .RData and not the .R
text file.
I use Emacs with ESS, and edit my functions in .R files. I then hit
Ctrl-C Ctrl-L and they are sourced into R. I find that's the easiest
way to develop simple functions. The other R environments can do
similar things.
Barry
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and provide commented, minimal, self-contained, reproducible code.
