Re: [R] How to load functions in R
Take a look at ?source Mihai.Mirauta wrote: Hello, I am trying to use self created functions in other scripts than the one where they are stored. For the moment I am using the following structure of commands to do that: 1. Load the text file with the functions in the current script: x=parse(path) 2. transform the tex in a function: f1=eval(x[1]), f2=eval(x[2]) if more than one function is stored in the text file 3. use the functions as normal Is there another possibility to do the same? Thank you, Mihai Mirauta [[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. -- View this message in context: http://www.nabble.com/How-to-load-functions-in-R-tp19434909p19434944.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] How to load functions in R
Hi, you may save your functions somewhere on your disk using save() and load them next time when you want to use them. See ?save and ?load Yihui On Thu, Sep 11, 2008 at 9:30 PM, [EMAIL PROTECTED] wrote: Hello, I am trying to use self created functions in other scripts than the one where they are stored. For the moment I am using the following structure of commands to do that: 1. Load the text file with the functions in the current script: x=parse(path) 2. transform the tex in a function: f1=eval(x[1]), f2=eval(x[2]) if more than one function is stored in the text file 3. use the functions as normal Is there another possibility to do the same? Thank you, Mihai Mirauta [[alternative HTML version deleted]] -- Yihui Xie [EMAIL PROTECTED] Phone: +86-(0)10-82509086 Fax: +86-(0)10-82509086 Mobile: +86-15810805877 Homepage: http://www.yihui.name School of Statistics, Room 1037, Mingde Main Building, Renmin University of China, Beijing, 100872, China __ 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] How to load functions in R
I would recommend saving the functions into a separate file and then using source() as bartjoosen suggested. I do not recommend using save() here because the output is non-readable (even when using ascii=TRUE option). Which means that you have to load() it, then copy-and-paste into an editor before making changes and then running it again in R and then save() again. Another better option is to consider making your own package. It may sound complicated but once you mastered it, it makes your functions more portable and encourages you to document it. Further, the function package.skeleton() simplifies much of it. Regards, Adai Yihui Xie wrote: Hi, you may save your functions somewhere on your disk using save() and load them next time when you want to use them. See ?save and ?load Yihui On Thu, Sep 11, 2008 at 9:30 PM, [EMAIL PROTECTED] wrote: Hello, I am trying to use self created functions in other scripts than the one where they are stored. For the moment I am using the following structure of commands to do that: 1. Load the text file with the functions in the current script: x=parse(path) 2. transform the tex in a function: f1=eval(x[1]), f2=eval(x[2]) if more than one function is stored in the text file 3. use the functions as normal Is there another possibility to do the same? Thank you, Mihai Mirauta [[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.
Re: [R] How to load functions in R
We may just read them in the R console instead of an external editor, and fix() or edit() them when we need to make any modifications. A trivial advantage of saving them as an image file in Windows is that you can double-click the file and R will be started with these objects loaded automatically. Anyway, to save the functions as ASCII files or even write a package are also good solutions :-) Regards, Yihui On Thu, Sep 11, 2008 at 10:34 PM, Adaikalavan Ramasamy [EMAIL PROTECTED] wrote: I would recommend saving the functions into a separate file and then using source() as bartjoosen suggested. I do not recommend using save() here because the output is non-readable (even when using ascii=TRUE option). Which means that you have to load() it, then copy-and-paste into an editor before making changes and then running it again in R and then save() again. Another better option is to consider making your own package. It may sound complicated but once you mastered it, it makes your functions more portable and encourages you to document it. Further, the function package.skeleton() simplifies much of it. Regards, Adai Yihui Xie wrote: Hi, you may save your functions somewhere on your disk using save() and load them next time when you want to use them. See ?save and ?load Yihui On Thu, Sep 11, 2008 at 9:30 PM, [EMAIL PROTECTED] wrote: Hello, I am trying to use self created functions in other scripts than the one where they are stored. For the moment I am using the following structure of commands to do that: 1. Load the text file with the functions in the current script: x=parse(path) 2. transform the tex in a function: f1=eval(x[1]), f2=eval(x[2]) if more than one function is stored in the text file 3. use the functions as normal Is there another possibility to do the same? Thank you, Mihai Mirauta [[alternative HTML version deleted]] -- Yihui Xie [EMAIL PROTECTED] Phone: +86-(0)10-82509086 Fax: +86-(0)10-82509086 Mobile: +86-15810805877 Homepage: http://www.yihui.name School of Statistics, Room 1037, Mingde Main Building, Renmin University of China, Beijing, 100872, China __ 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] How to load functions in R
Hello, It seems that all methods work. Source() however loads only the last function. with save(a,b,file=path) i can save more than 1 function. Thanks a lot, Mihai -Ursprüngliche Nachricht- Von: Yihui Xie [mailto:[EMAIL PROTECTED] Gesendet: Donnerstag, 11. September 2008 16:48 An: [EMAIL PROTECTED] Cc: Mirauta, Mihai; r-help@r-project.org Betreff: Re: [R] How to load functions in R We may just read them in the R console instead of an external editor, and fix() or edit() them when we need to make any modifications. A trivial advantage of saving them as an image file in Windows is that you can double-click the file and R will be started with these objects loaded automatically. Anyway, to save the functions as ASCII files or even write a package are also good solutions :-) Regards, Yihui On Thu, Sep 11, 2008 at 10:34 PM, Adaikalavan Ramasamy [EMAIL PROTECTED] wrote: I would recommend saving the functions into a separate file and then using source() as bartjoosen suggested. I do not recommend using save() here because the output is non-readable (even when using ascii=TRUE option). Which means that you have to load() it, then copy-and-paste into an editor before making changes and then running it again in R and then save() again. Another better option is to consider making your own package. It may sound complicated but once you mastered it, it makes your functions more portable and encourages you to document it. Further, the function package.skeleton() simplifies much of it. Regards, Adai Yihui Xie wrote: Hi, you may save your functions somewhere on your disk using save() and load them next time when you want to use them. See ?save and ?load Yihui On Thu, Sep 11, 2008 at 9:30 PM, [EMAIL PROTECTED] wrote: Hello, I am trying to use self created functions in other scripts than the one where they are stored. For the moment I am using the following structure of commands to do that: 1. Load the text file with the functions in the current script: x=parse(path) 2. transform the tex in a function: f1=eval(x[1]), f2=eval(x[2]) if more than one function is stored in the text file 3. use the functions as normal Is there another possibility to do the same? Thank you, Mihai Mirauta [[alternative HTML version deleted]] -- Yihui Xie [EMAIL PROTECTED] Phone: +86-(0)10-82509086 Fax: +86-(0)10-82509086 Mobile: +86-15810805877 Homepage: http://www.yihui.name School of Statistics, Room 1037, Mingde Main Building, Renmin University of China, Beijing, 100872, China __ 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] How to load functions in R
YX == Yihui Xie [EMAIL PROTECTED] on Thu, 11 Sep 2008 22:47:47 +0800 writes: YX We may just read them in the R console instead of an external editor, YX and fix() or edit() them when we need to make any modifications. A YX trivial advantage of saving them as an image file in Windows is that YX you can double-click the file and R will be started with these objects YX loaded automatically. Anyway, to save the functions as ASCII files or YX even write a package are also good solutions :-) ^ also good... baahh... *THE* good! I'd strongly second Adai's view here: *DO* use *.R source files --- together with an R-syntax aware editor, there are many nowadays and source() them, as a first step; put them in an own package as a 2nd step. Martin Maechler, ETH Zurich YX Regards, YX Yihui YX On Thu, Sep 11, 2008 at 10:34 PM, Adaikalavan Ramasamy YX [EMAIL PROTECTED] wrote: I would recommend saving the functions into a separate file and then using source() as bartjoosen suggested. I do not recommend using save() here because the output is non-readable (even when using ascii=TRUE option). Which means that you have to load() it, then copy-and-paste into an editor before making changes and then running it again in R and then save() again. Another better option is to consider making your own package. It may sound complicated but once you mastered it, it makes your functions more portable and encourages you to document it. Further, the function package.skeleton() simplifies much of it. Regards, Adai Yihui Xie wrote: Hi, you may save your functions somewhere on your disk using save() and load them next time when you want to use them. See ?save and ?load Yihui On Thu, Sep 11, 2008 at 9:30 PM, [EMAIL PROTECTED] wrote: Hello, I am trying to use self created functions in other scripts than the one where they are stored. For the moment I am using the following structure of commands to do that: 1. Load the text file with the functions in the current script: x=parse(path) 2. transform the tex in a function: f1=eval(x[1]), f2=eval(x[2]) if more than one function is stored in the text file 3. use the functions as normal Is there another possibility to do the same? Thank you, Mihai Mirauta [[alternative HTML version deleted]] YX -- YX Yihui Xie [EMAIL PROTECTED] YX Phone: +86-(0)10-82509086 Fax: +86-(0)10-82509086 YX Mobile: +86-15810805877 YX Homepage: http://www.yihui.name YX School of Statistics, Room 1037, Mingde Main Building, YX Renmin University of China, Beijing, 100872, China YX __ YX R-help@r-project.org mailing list YX https://stat.ethz.ch/mailman/listinfo/r-help YX PLEASE do read the posting guide http://www.R-project.org/posting-guide.html YX 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] How to load functions in R
Strange. source() should read all the function in that file unless there was a syntax error or something else preventing the other function from being parsed correctly. Could you send us a simplified example that reproduces this problem? Thanks. Regards, Adai [EMAIL PROTECTED] wrote: Hello, It seems that all methods work. Source() however loads only the last function. with save(a,b,file=path) i can save more than 1 function. Thanks a lot, Mihai -Ursprüngliche Nachricht- Von: Yihui Xie [mailto:[EMAIL PROTECTED] Gesendet: Donnerstag, 11. September 2008 16:48 An: [EMAIL PROTECTED] Cc: Mirauta, Mihai; r-help@r-project.org Betreff: Re: [R] How to load functions in R We may just read them in the R console instead of an external editor, and fix() or edit() them when we need to make any modifications. A trivial advantage of saving them as an image file in Windows is that you can double-click the file and R will be started with these objects loaded automatically. Anyway, to save the functions as ASCII files or even write a package are also good solutions :-) Regards, Yihui On Thu, Sep 11, 2008 at 10:34 PM, Adaikalavan Ramasamy [EMAIL PROTECTED] wrote: I would recommend saving the functions into a separate file and then using source() as bartjoosen suggested. I do not recommend using save() here because the output is non-readable (even when using ascii=TRUE option). Which means that you have to load() it, then copy-and-paste into an editor before making changes and then running it again in R and then save() again. Another better option is to consider making your own package. It may sound complicated but once you mastered it, it makes your functions more portable and encourages you to document it. Further, the function package.skeleton() simplifies much of it. Regards, Adai Yihui Xie wrote: Hi, you may save your functions somewhere on your disk using save() and load them next time when you want to use them. See ?save and ?load Yihui On Thu, Sep 11, 2008 at 9:30 PM, [EMAIL PROTECTED] wrote: Hello, I am trying to use self created functions in other scripts than the one where they are stored. For the moment I am using the following structure of commands to do that: 1. Load the text file with the functions in the current script: x=parse(path) 2. transform the tex in a function: f1=eval(x[1]), f2=eval(x[2]) if more than one function is stored in the text file 3. use the functions as normal Is there another possibility to do the same? Thank you, Mihai Mirauta [[alternative HTML version deleted]] -- Yihui Xie [EMAIL PROTECTED] Phone: +86-(0)10-82509086 Fax: +86-(0)10-82509086 Mobile: +86-15810805877 Homepage: http://www.yihui.name School of Statistics, Room 1037, Mingde Main Building, Renmin University of China, Beijing, 100872, China __ 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] How to load functions in R
Source(file.path) executes the file at file.path in order, just as if you
had typed it in.
So, the source file should in fact name each function in turn:
f1 - function(x) { ... }
f2 - function(x) { ... }
...etc.
So a good way to debug is to just copy and paste lines from your source file
into the R command line, and see if they behave as expected.
--Adam
On Thu, 11 Sep 2008, Adaikalavan Ramasamy wrote:
Strange.
source() should read all the function in that file unless there was a syntax
error or something else preventing the other function from being parsed
correctly. Could you send us a simplified example that reproduces this
problem?
Thanks.
Regards, Adai
[EMAIL PROTECTED] wrote:
Hello,
It seems that all methods work. Source() however loads only the last
function. with save(a,b,file=path) i can save more than 1 function.
Thanks a lot,
Mihai
-Ursprüngliche Nachricht-
Von: Yihui Xie [mailto:[EMAIL PROTECTED] Gesendet: Donnerstag, 11.
September 2008 16:48
An: [EMAIL PROTECTED]
Cc: Mirauta, Mihai; r-help@r-project.org
Betreff: Re: [R] How to load functions in R
We may just read them in the R console instead of an external editor, and
fix() or edit() them when we need to make any modifications. A trivial
advantage of saving them as an image file in Windows is that you can
double-click the file and R will be started with these objects loaded
automatically. Anyway, to save the functions as ASCII files or even write
a package are also good solutions :-)
Regards,
Yihui
On Thu, Sep 11, 2008 at 10:34 PM, Adaikalavan Ramasamy
[EMAIL PROTECTED] wrote:
I would recommend saving the functions into a separate file and then
using
source() as bartjoosen suggested.
I do not recommend using save() here because the output is non-readable
(even when using ascii=TRUE option). Which means that you have to load()
it, then copy-and-paste into an editor before making changes and then
running it again in R and then save() again.
Another better option is to consider making your own package. It may
sound complicated but once you mastered it, it makes your functions more
portable and encourages you to document it. Further, the function
package.skeleton() simplifies much of it.
Regards, Adai
Yihui Xie wrote:
Hi, you may save your functions somewhere on your disk using save()
and load them next time when you want to use them. See ?save and ?load
Yihui
On Thu, Sep 11, 2008 at 9:30 PM, [EMAIL PROTECTED] wrote:
Hello,
I am trying to use self created functions in other scripts than the one
where they are stored.
For the moment I am using the following structure of commands to do
that:
1. Load the text file with the functions in the current script:
x=parse(path)
2. transform the tex in a function: f1=eval(x[1]), f2=eval(x[2]) if
more than one function is stored in the text file 3. use the functions
as normal
Is there another possibility to do the same?
Thank you,
Mihai Mirauta
[[alternative HTML version deleted]]
--
Yihui Xie [EMAIL PROTECTED]
Phone: +86-(0)10-82509086 Fax: +86-(0)10-82509086
Mobile: +86-15810805877
Homepage: http://www.yihui.name
School of Statistics, Room 1037, Mingde Main Building, Renmin University
of China, Beijing, 100872, China
__
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] How to load functions in R
On 12/09/2008, at 2:53 AM, [EMAIL PROTECTED] wrote:
Hello,
It seems that all methods work.
Source() however loads only the last function.
This is absolute nonsense. You are doing something wrong
and/or not understanding what you are doing. This is
bad practice.
with save(a,b,file=path) i can save more than 1 function.
No kidding!
cheers,
Rolf Turner
##
Attention:\ This e-mail message is privileged and confid...{{dropped:9}}
__
R-help@r-project.org mailing list
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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] How to load functions in R
Wow...
source() on a text file is the way to go - forget everything else. If
you have multiple *.R script files, in a directory, say R/, you can
load them all by:
pathnames - list.files(pattern=[.]R$, path=R/, full.names=TRUE);
sapply(pathnames, FUN=source);
or even shorter:
sapply(list.files(pattern=[.]R$, path=R/, full.names=TRUE), source);
This way the changes you need to do for setting up a package to a minimal.
FYI, in the R.utils package there is a utility function
sourceDirectory() that makes this even easier- this function can keep
track of what files have been changed since last time you sourced a
directory. Just do
sourceDirectory(R/, modifiedOnly=TRUE);
to load all your *.R scripts. If you then update one of the files, just do
sourceDirectory(R/, modifiedOnly=TRUE);
again, to reload that file. All other non-modified files will be
ignored, which can be convenient if you have a lot of files.
Cheers
/Henrik
On Thu, Sep 11, 2008 at 12:14 PM, Adam D. I. Kramer
[EMAIL PROTECTED] wrote:
Source(file.path) executes the file at file.path in order, just as if you
had typed it in.
So, the source file should in fact name each function in turn:
f1 - function(x) { ... }
f2 - function(x) { ... }
...etc.
So a good way to debug is to just copy and paste lines from your source file
into the R command line, and see if they behave as expected.
--Adam
On Thu, 11 Sep 2008, Adaikalavan Ramasamy wrote:
Strange.
source() should read all the function in that file unless there was a
syntax error or something else preventing the other function from being
parsed correctly. Could you send us a simplified example that reproduces
this problem?
Thanks.
Regards, Adai
[EMAIL PROTECTED] wrote:
Hello,
It seems that all methods work. Source() however loads only the last
function. with save(a,b,file=path) i can save more than 1 function. Thanks
a lot,
Mihai
-Ursprüngliche Nachricht-
Von: Yihui Xie [mailto:[EMAIL PROTECTED] Gesendet: Donnerstag, 11.
September 2008 16:48
An: [EMAIL PROTECTED]
Cc: Mirauta, Mihai; r-help@r-project.org
Betreff: Re: [R] How to load functions in R
We may just read them in the R console instead of an external editor, and
fix() or edit() them when we need to make any modifications. A trivial
advantage of saving them as an image file in Windows is that you can
double-click the file and R will be started with these objects loaded
automatically. Anyway, to save the functions as ASCII files or even write a
package are also good solutions :-)
Regards,
Yihui
On Thu, Sep 11, 2008 at 10:34 PM, Adaikalavan Ramasamy
[EMAIL PROTECTED] wrote:
I would recommend saving the functions into a separate file and then
using
source() as bartjoosen suggested.
I do not recommend using save() here because the output is non-readable
(even when using ascii=TRUE option). Which means that you have to load()
it,
then copy-and-paste into an editor before making changes and then running
it
again in R and then save() again.
Another better option is to consider making your own package. It may
sound complicated but once you mastered it, it makes your functions more
portable and encourages you to document it. Further, the function
package.skeleton() simplifies much of it.
Regards, Adai
Yihui Xie wrote:
Hi, you may save your functions somewhere on your disk using save()
and load them next time when you want to use them. See ?save and ?load
Yihui
On Thu, Sep 11, 2008 at 9:30 PM, [EMAIL PROTECTED] wrote:
Hello,
I am trying to use self created functions in other scripts than the
one where they are stored.
For the moment I am using the following structure of commands to do
that:
1. Load the text file with the functions in the current script:
x=parse(path)
2. transform the tex in a function: f1=eval(x[1]), f2=eval(x[2]) if
more than one function is stored in the text file 3. use the functions as
normal
Is there another possibility to do the same?
Thank you,
Mihai Mirauta
[[alternative HTML version deleted]]
--
Yihui Xie [EMAIL PROTECTED]
Phone: +86-(0)10-82509086 Fax: +86-(0)10-82509086
Mobile: +86-15810805877
Homepage: http://www.yihui.name
School of Statistics, Room 1037, Mingde Main Building, Renmin University
of China, Beijing, 100872, China
__
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.
__
R-help@r-project.org mailing list
https://stat.ethz.ch
