[datatable-help] Error in a package that imports data.table

[Victor Kryukov]

Hi Matthew,

my DESCRIPTION file has the following section:

Imports:
    data.table,
    lubridate

and my (generated) NAMESPACE contains

export(ProcessTransactionSurvey)
import(data.table)
import(lubridate)

My R CMD CHECK (run with check() from devtools) mostly runs OK but fails at the end with the following error, which is expected since I haven't created any documentation yet. I'm not sure yet have to fix this LaTeX warning (I do have latex installed on my machine).

* checking PDF version of manual ... WARNING
LaTeX errors when creating PDF version.
This typically indicates Rd problems.
LaTeX errors found:
* checking PDF version of manual without hyperrefs or index ... ERROR
Error: Command failed (1)

Anything else I should check?

Victor


On Mar 3, 2013, at 3:26 PM, Matthew Dowle <mdowle at mdowle.plus.com> wrote:

> 
> Hi,
> 
> Did you include data.table in either the Imports or Depends field of your package's DESCRIPTION file?
> 
> I've just improved data.table FAQ 6.9 to make that clearer.
> 
> If it still doesn't work, does your package fully pass "R CMD check"?
> 
> Matthew
> 
> 
> On 03.03.2013 22:25, Victor Kryukov wrote:
>> Hello,
>> 
>> I'm developing an R package which will be used internally at my
>> company, and I have troubles using data.table. I'm very new to package
>> development and I'm not really sure whether the errors I see are
>> related to data.table or not, but here it is anyway.
>> 
>> I have a function that imports data from .csv files and cleans the
>> data (subsets, converting fields to numeric etc.). As the end of the
>> function definition, I convert the resulting data.frame to data.table
>> and return the result:
>> 
>> ProcessData <- function(…) {
>> 	...
>> 	df <- data.table(df)
>> 	df
>> }
>> 
>> When I use this function standalone, after
>> 
>> library(data.package)
>> 
>> everything works as expected. However, when I'm defining this
>> function as a part of a package and later call it, I'm getting the
>> following error:
>> 
>> Error in rbind(deparse.level, ...) :
>>  could not find function ".rbind.data.table"
>> 
>> Please note that in the package .R files, I'm not importing
>> data.table directly with library(data.package) but rather have
>> `import(data.table)` statement in my NAMESPACE, as recommended here
>> https://github.com/hadley/devtools/wiki/Namespaces.
>> 
>> When I import data.table directly with library(data.table) after
>> importing my package, everything works as expected.
>> 
>> I suspect there may be something going wrong with namespaces in data.table.
>> 
>> My environment: I'm using R 2.15.3 on Mac and have tested the above
>> on both data.table 1.8.6 and 1.8.7. Please let me know if I need to
>> provide more info. Any help will be much appreciated!
>> 
>> Regards,
>> Victor
>> 
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