On Mon, 31 Dec 2007, Jean-Victor C?t? wrote:
If I copy the following commands in my batch file to the R console, R
creates a file named "basicStatsIBM.lis" with the program output in it:
Sortie <- file(description = "basicStatsIBM.lis", open = "wt", blocking =
TRUE,
encoding = "UTF-8")
sink(file = Sortie, append = FALSE, type = "output", split = FALSE)
basicStats(ibm)
close(Sortie)
However, the same commands in a text file (named batch.txt, for instance)
referred to from the R console by the command source("batch.txt") yields an
empty "basicStatsIBM.lis" file.
Why the discrepancy in processing?
How to make the batch commands work as if the commands were pasted directly
in the R console?
A solution to this problem would save time and aggravation to many people.
As it happens, the R Development Core Team provides just such a solution
(to 'save time and aggravation to many' of us) in the form of:
1) EXCELLENT DOCUMENTATION to enable you to figure out why this
happens
2) flexible functions like source() with useful arguments like
'print.eval' and sensible defaults for them.
and
3) Useful problem solving advice in the Posting Guide.
By following the advice in the Posting Guide, you would find this help
page:
?source
and I expect see this bit:
Arguments:
.
.
.
print.eval: logical; if 'TRUE', the result of 'eval(i)' is printed
for each expression 'i'; defaults to 'echo'.
---
You might be confused by the word 'printed', which seems to refer only to
expressions that would autoprint (and not stuff like 'x <- y')
---
'Nother words use 'source("batch.txt", print.eval=TRUE)' and try the
suggestions in the Posting Guide when you hit a snag.
Chuck
Thank you.
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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Charles C. Berry (858) 534-2098
Dept of Family/Preventive Medicine
E mailto:[EMAIL PROTECTED] UC San Diego
http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901
______________________________________________
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.
