Hi all,
I am currently studying how to generalize the usage of R in my statistical
institute and I encountered a problem that I cannot declare on bugzilla (cannot
understand why). Sorry for trying this mailing list but I am really worried
about the problem itself and the possible implications in using R in a
professionnal data production context.
The issue about 'write.csv' is that it just doesn't check if there is enough
space on disk and doesn't report failure to write data.
Example (R 3.4.0 windows 32 bits, but I reproduced the problem with older
versions and under Mac OS/X)
> fwrite(as.list(1:1000000),"G:/Test")
Error in fwrite(as.list(1:1e+06), "G:/Test") :
No space left on device: 'G:/Test'
> write.csv(1:1000000,"G:/Test")
>
I have a big concern here, because it means that you could save some important
data at one point of time and discover a long time after that you actually lost
them. I suppose that the fix is relatively straightforward, but how can we be
sure that there is no another function with the same bad properties? Is the
lesson that you should not use a R function, even from the core, without having
personnally tested it against extreme conditions? And wouldn't it be the work
of the developpers to do such elementary tests?
Thanks
Jean-Luc LIPATZ
Insee - Direction g�n�rale
Responsable de la coordination sur le d�veloppement de R et la mise en oeuvre
d'alternatives � SAS
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