[R] txtStart creates a NULL file

[R. Michael Weylandt]

Like others in the referenced thread, I can reproduce this on Mac OS X
10.5.8 with R 2.14.1 using R.app but it works just fine from the
Terminal CLI so it's likely something in the GUI rather than R itself:
I'll forward this to R-SIG-Mac and see if Simon (Urbanek) picks it up.

Michael

On Tue, Feb 14, 2012 at 3:50 PM, Simon Kiss <sjkiss at gmail.com> wrote:
> Hello all:
> I'm trying to use the following code to get commands, comments and results to a .txt file.  It only appears to capture comments. When I comment those out with #, it creates a NULL file.
> Someone seemed to have a similar problem with a mac GUI (https://stat.ethz.ch/pipermail/r-help/2010-September/253177.html) but the result seemed to be ambiguous. Is there a work-around? Reproducible code and sessioninfo are below.   The OS is Mac OS 10.6.8.
>
> Yours truly, Simon Kiss
>
> install.packages("HSAUR")
> library(HSAUR)
> library(TeachingDemos)
> data("Forbes2000", package="HSAUR")
> #This is a test of R output for the blind
> txtStart('test.txt', commands=TRUE, results=TRUE)
> txtComment('This command provides the mean profit in the data set')
> mean(Forbes2000$profits, na.rm=TRUE)
> txtComment('This command provides the standard deviation of the profits data set')
> sd(Forbes2000$profits, na.rm=TRUE)
> txtComment('This command provides the average profit by country')
> aggregate(Forbes2000$profits, by=list(Forbes2000$country), function(x) mean(x, na.rm=TRUE))
> txtStop()
>
>
> SessionInfo()
>
> R version 2.13.2 (2011-09-30)
> Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit)
>
> locale:
> [1] en_CA.UTF-8/en_CA.UTF-8/C/C/en_CA.UTF-8/en_CA.UTF-8
>
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base
>
> other attached packages:
> [1] TeachingDemos_2.7
>
> loaded via a namespace (and not attached):
> [1] tools_2.13.2
>
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> and provide commented, minimal, self-contained, reproducible code.