Re: [R] save intermediate result
On Fri, May 04, 2007 at 04:55:36PM -0400, Weiwei Shi wrote:
sorry for my English, staying in US over 7 years makes me think I were
ok, now :(
anyway, here is an example and why I need that:
suppose I have a function like the following:
f1 - function(){
line1 - f2() # assume this line takes very long time, like more than 30 min
# then I need to save line1 as an object into workspace b/c
# the following lines after this might have some bugs
# currently I use
save(line1, file=line1.robj)
# but I am thinking if there is anothe way, like enviroment, instead
of save it into a file
# codes as followed might have some bugs
# blabla...
}
yes, that's what I thought you meant. so use
line1 - f2()
i.e. the assignment operator `-' instead of `-'. after f2() is
finished, the object `line1' is available from the R prompt, i.e.
visible in the workspace (for details, cf. `help(-)').
if some codes as followed have bugs, my f1 function cannot return
anything, which means I have to re-run the time-consuming line again.
you probably should debug it using some dummy data instead of the f2()
call...
thanks,
Weiwei
On 5/4/07, Joerg van den Hoff [EMAIL PROTECTED] wrote:
On Fri, May 04, 2007 at 03:45:10PM -0400, Weiwei Shi wrote:
hi,
is there a way to save a R object into workspace instead of into a
file during a running of function?
if I understand the question correctly you want the 'super-assignment'
operator `-' as in
-cut---
R f - function(x) y - 2*x
R f(1)
R y
[1] 2
R f(10)
R y
[1] 20
-cut---
i.e. y is assigned a value in the 'workspace'. be careful, though, with
this kind of assignment. why not return the object you are interested
in as a list component together with other results when the function
call finishes?
--
Weiwei Shi, Ph.D
Research Scientist
GeneGO, Inc.
Did you always know?
No, I did not. But I believed...
---Matrix III
__
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] save intermediate result
Break your long running function into two parts. The first will be
the long running part and it can return a value that you can pass to
the second part. If the second part fails, you still have the
original value that was returned.
f1.1 - function(){
line1 - f2()
return(line1)
}
f1.2 - function(line1){
rest of the original f1
}
origData - f1.1()
nextData - f1.2(origData)
On 5/4/07, Weiwei Shi [EMAIL PROTECTED] wrote:
sorry for my English, staying in US over 7 years makes me think I were
ok, now :(
anyway, here is an example and why I need that:
suppose I have a function like the following:
f1 - function(){
line1 - f2() # assume this line takes very long time, like more than 30 min
# then I need to save line1 as an object into workspace b/c
# the following lines after this might have some bugs
# currently I use
save(line1, file=line1.robj)
# but I am thinking if there is anothe way, like enviroment, instead
of save it into a file
# codes as followed might have some bugs
# blabla...
}
if some codes as followed have bugs, my f1 function cannot return
anything, which means I have to re-run the time-consuming line again.
thanks,
Weiwei
On 5/4/07, Joerg van den Hoff [EMAIL PROTECTED] wrote:
On Fri, May 04, 2007 at 03:45:10PM -0400, Weiwei Shi wrote:
hi,
is there a way to save a R object into workspace instead of into a
file during a running of function?
if I understand the question correctly you want the 'super-assignment'
operator `-' as in
-cut---
R f - function(x) y - 2*x
R f(1)
R y
[1] 2
R f(10)
R y
[1] 20
-cut---
i.e. y is assigned a value in the 'workspace'. be careful, though, with
this kind of assignment. why not return the object you are interested
in as a list component together with other results when the function
call finishes?
--
Weiwei Shi, Ph.D
Research Scientist
GeneGO, Inc.
Did you always know?
No, I did not. But I believed...
---Matrix III
__
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?
__
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.
[R] save intermediate result
hi, is there a way to save a R object into workspace instead of into a file during a running of function? thanks, -- Weiwei Shi, Ph.D Research Scientist GeneGO, Inc. Did you always know? No, I did not. But I believed... ---Matrix III __ 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] save intermediate result
On Fri, May 04, 2007 at 03:45:10PM -0400, Weiwei Shi wrote: hi, is there a way to save a R object into workspace instead of into a file during a running of function? if I understand the question correctly you want the 'super-assignment' operator `-' as in -cut--- R f - function(x) y - 2*x R f(1) R y [1] 2 R f(10) R y [1] 20 -cut--- i.e. y is assigned a value in the 'workspace'. be careful, though, with this kind of assignment. why not return the object you are interested in as a list component together with other results when the function call finishes? __ 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] save intermediate result
sorry for my English, staying in US over 7 years makes me think I were
ok, now :(
anyway, here is an example and why I need that:
suppose I have a function like the following:
f1 - function(){
line1 - f2() # assume this line takes very long time, like more than 30 min
# then I need to save line1 as an object into workspace b/c
# the following lines after this might have some bugs
# currently I use
save(line1, file=line1.robj)
# but I am thinking if there is anothe way, like enviroment, instead
of save it into a file
# codes as followed might have some bugs
# blabla...
}
if some codes as followed have bugs, my f1 function cannot return
anything, which means I have to re-run the time-consuming line again.
thanks,
Weiwei
On 5/4/07, Joerg van den Hoff [EMAIL PROTECTED] wrote:
On Fri, May 04, 2007 at 03:45:10PM -0400, Weiwei Shi wrote:
hi,
is there a way to save a R object into workspace instead of into a
file during a running of function?
if I understand the question correctly you want the 'super-assignment'
operator `-' as in
-cut---
R f - function(x) y - 2*x
R f(1)
R y
[1] 2
R f(10)
R y
[1] 20
-cut---
i.e. y is assigned a value in the 'workspace'. be careful, though, with
this kind of assignment. why not return the object you are interested
in as a list component together with other results when the function
call finishes?
--
Weiwei Shi, Ph.D
Research Scientist
GeneGO, Inc.
Did you always know?
No, I did not. But I believed...
---Matrix III
__
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.
