[R] Sweave : change value in rnw file to generate multiple "single" reports ?

[Ptit_Bleu]

Dear Uwe,

Could you please give me the name of the function to open, to modify and to
save a r script ?
Just the name and I will look for the way to use them.

And if you have a link explaining how to use user customized variables from
an environment variable, it will be very helpful (as it is completely new to
me).

Thanks in advance,
Ptit Bleu.

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Within or before SWeave, you can use R.
Hence you can write some R function that first changes the rnw and runs 
SWeave thereafter, or even better, write something in your SWeave code 
that reads a user customized variables, e.g. from an environment 
variable or from some text file.

Uwe Ligges
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