You said:

<< Lets say I changed the parameters x to 0.123, y to -0.456, z to -999.99

Then I have to save the R script file as
"Experiment_001_x=0.123_y=-0.456_z=-999.99.r"

and the result file as "Experiment_001_x=0.123_y=-0.456_z=-999.99.rData"
>>

I suggest you create instead a "Experiment.r" file that contains a function:

experiment <- function(x,y,z) { ... }

Then a session could look like this:

> source("Experiment.r")
> x <- 0.123
> y <- -0.456
> z <- -999.99
> output <- experiment(x, y, z)
> save.image(...)

Your file will have everything (inputs, code, output) like you requested.



On Sat, Jan 21, 2012 at 8:39 PM, jim holtman <jholtman@gmail.com> wrote:

> The what you can do is that the 'main' R script just setups up the
> parameters and then calls functions (or sources in another R script).
> What you will be doing by the process I described is saving just the
> short R script that has all of your parameters.  Does this solve your
> problem?
>
> As a second option, use 'readLines' to read in your 'parameter' file
> that was passed in into a character object.  This will be saved in the
> RData file and then when you read it back in, you can then look at
> this character object to see what the parameters were.
>
> On Sat, Jan 21, 2012 at 8:25 PM, Michael <comtech.usa@gmail.com> wrote:
> > I don't want to save separate script files with merely parameter
> changes...
> >
> > This is a 1-to-multiple mapping problem:
> >
> > I have one script file, but varying parameters leads to multiple rData
> > files...
> >
> > If I could save the script file content (with the correct parameter
> > combinations) into the same rData file, everything would be
> self-containing
> > and self-explainatory...
> >
> > On Sat, Jan 21, 2012 at 6:24 PM, Michael <comtech.usa@gmail.com> wrote:
> >
> >> Hi all,
> >>
> >> As a part of work flow, I do a lot of experiments and save all my
> results
> >> into rData file...
> >>
> >> i.e. at the end of all my experiments, I do
> >> "save.image("experiment_name_with_series_number.rData")"...
> >>
> >> However, some times even with the rData files, I cannot remember the
> >> context where these data files were generated.
> >>
> >> Of course, I can make the R data file names and the R script file names
> >> the same, so that whenever I see a data file, I will be able to track
> down
> >> to how the result file was generated.
> >>
> >> This is fine. But sometimes a bunch of different results rData files
> were
> >> generated simply from varying a parameter in the same R script file.
> >>
> >> It's kind of messy to save different R script files with different names
> >> when only parameters are different, and not to say if there are a bunch
> of
> >> parameters that need to be put into file names...
> >>
> >> Lets say I changed the parameters x to 0.123, y to -0.456, z to -999.99
> >>
> >> Then I have to save the R script file as
> >> "Experiment_001_x=0.123_y=-0.456_z=-999.99.r"
> >>
> >> and the result file as "Experiment_001_x=0.123_y=-0.456_z=-999.99.rData"
> >>
> >> ...
> >>
> >> This is kind of messy, isn't it?
> >>
> >> Is there a way to save the whole script file (i.e. the context where the
> >> data file is generated) into the rData file? It cannot be the file
> location
> >> and/or file name of the R script file; it needs to be the whole content
> of
> >> the file... to prevent the parameters change .. i.e. the same R script
> file
> >> but with different combinations of parameters...
> >>
> >> How to do that?
> >>
> >> Any good tricks?
> >>
> >> Thanks a lot!
> >>
> >
> >        [[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.
>
>
>
> --
> Jim Holtman
> Data Munger Guru
>
> What is the problem that you are trying to solve?
> Tell me what you want to do, not how you want to do it.
>
> ______________________________________________
> 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.
>

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