[R] fwrite() not found in data.table package

Matthew Keller mckellercran at gmail.com
Mon Oct 2 19:10:30 CEST 2017

Thanks Jeff!

It turns out that my problem was that I tried to install the newest
data.table package while the old data.table package was loaded in R. Full
instructions for installing data.table are here:

On Mon, Oct 2, 2017 at 10:55 AM, Jeff Newmiller <jdnewmil at dcn.davis.ca.us>

> You are asking about (a) a contributed package (b) for a package version
> that is not in CRAN and (c) an R version that is outdated, which stretches
> the definition of "on topic" here. Since that function does not appear to
> have been removed from that package (I am not installing a development
> version to test if it is broken for your benefit), I will throw out a guess
> that if you update R to 3.4.1 or 3.4.2 then things might start working. If
> not, I suggest you use the CRAN version of the package and create a
> reproducible example (check it with package reprex) and try again here, or
> ask one of the maintainers of that package.
> --
> Sent from my phone. Please excuse my brevity.
> On October 2, 2017 8:56:46 AM PDT, Matthew Keller <mckellercran at gmail.com>
> wrote:
> >Hi all,
> >
> >I used to use fwrite() function in data.table but I cannot get it to
> >work
> >now. The function is not in the data.table package, even though a help
> >page
> >exists for it. My session info is below. Any ideas on how to get
> >fwrite()
> >to work would be much appreciated. Thanks!
> >
> >> sessionInfo()
> >R version 3.2.0 (2015-04-16)
> >Platform: x86_64-unknown-linux-gnu (64-bit)
> >Running under: Red Hat Enterprise Linux Server release 6.3 (Santiago)
> >
> >locale:
> > [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C
> >LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8
> > [8] LC_NAME=C                  LC_ADDRESS=C
> >
> >attached base packages:
> >[1] stats     graphics  grDevices utils     datasets  methods   base
> >
> >other attached packages:
> >[1] data.table_1.10.5
> >
> >loaded via a namespace (and not attached):
> >[1] tools_3.2.0  chron_2.3-47 tcltk_3.2.0

Matthew C Keller
Asst. Professor of Psychology
University of Colorado at Boulder

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