Re: [Rd] How to generate dependency file that can be used by gnu make?
This may not easy to do, when the filename are not hard coded strings.
For example, the variable 'filename' is a vector of strings.
for (i in 1:length(filename)){
do something...
save(,file=filename[i])
}
On Mon, Nov 16, 2009 at 11:33 PM, Linlin Yan yanlinli...@gmail.com wrote:
I don't think this function is same as gcc's option -MM. Because gcc
checks pre-compile command #include, in which the filename can be
fetched definitely. But in your scenario, the filename may be from
some variables, which can not be determined by the R script only.
Maybe you can write a tool by yourself to parse the R syntax to
resolve your problem.
On Tue, Nov 17, 2009 at 11:51 AM, Peng Yu pengyu...@gmail.com wrote:
On Sun, Nov 15, 2009 at 8:45 PM, Peng Yu pengyu...@gmail.com wrote:
gcc has options like -MM, which can generate the dependence files for
a C/C++ file that I can be used by gnu make. I'm wondering if there is
a tool that can generate dependence file for an R script.
For example, I have an R script test.R
#test.R
load('input.RData')
save.image('output.RData')
I want to generate a dependence file like the following. Is there a
tool to do so?
output.RData:test.R input.RData
Is there a way to automatically generate the output files that depends
on an R script and the input files and sourced files that are depended
by an R script? I don't see this option in R. But I wish this can be
implemented in future version of R.
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Re: [Rd] How to generate dependency file that can be used by gnu make?
On 11/17/09 5:02 AM, Peng Yu wrote:
This may not easy to do, when the filename are not hard coded strings.
For example, the variable 'filename' is a vector of strings.
for (i in 1:length(filename)){
do something...
save(,file=filename[i])
}
That's right. I don't think there is a feasible general solution. You
might have more success with a convention-based approach for your
scripts that would allow a simple parser to identify output files by
name convention, for example.
+ seth
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Re: [Rd] How to generate dependency file that can be used by gnu make?
On Sun, Nov 15, 2009 at 8:45 PM, Peng Yu pengyu...@gmail.com wrote:
gcc has options like -MM, which can generate the dependence files for
a C/C++ file that I can be used by gnu make. I'm wondering if there is
a tool that can generate dependence file for an R script.
For example, I have an R script test.R
#test.R
load('input.RData')
save.image('output.RData')
I want to generate a dependence file like the following. Is there a
tool to do so?
output.RData:test.R input.RData
Is there a way to automatically generate the output files that depends
on an R script and the input files and sourced files that are depended
by an R script? I don't see this option in R. But I wish this can be
implemented in future version of R.
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https://stat.ethz.ch/mailman/listinfo/r-devel
