[R-pkg-devel] dplyr usage inside another package

Greetings,

I'm using dplyr inside of another package with examples like this:

data <- dplyr::filter(data, datetime >= trange[1], datetime <= trange[2])


When I run my package through R CMD check I get the following NOTES:

monitorSubsetData: no visible binding for global variable ?datetime?


I already have dplyr listed in the package Depends: section of the
DESCRIPTION.

I'm also encountering

no visible global function definition for ?matches?


when I try to use the dplyr internal function matches().

Is there any way to allow for dplyr syntactic sugar inside of my package

or
do I need to be pedantic and say data$datetime in the first example and
dplyr::matches in the second? (Will dplyr::matches even work when it is not
an exported function?)

Thanks,

Jon

On Aug 10, 2015, at 3:35 PM, Jonathan Callahan <jonathan at mazamascience.com> wrote:

Greetings,

I'm using dplyr inside of another package with examples like this:

data <- dplyr::filter(data, datetime >= trange[1], datetime <= trange[2])


When I run my package through R CMD check I get the following NOTES:

monitorSubsetData: no visible binding for global variable ?datetime?


I already have dplyr listed in the package Depends: section of the
DESCRIPTION.

I'm also encountering

no visible global function definition for ?matches?


when I try to use the dplyr internal function matches().

Is there any way to allow for dplyr syntactic sugar inside of my package or
do I need to be pedantic and say data$datetime in the first example and
dplyr::matches in the second? (Will dplyr::matches even work when it is not
an exported function?)

Thanks,

Jon

-- 
Jonathan Callahan, PhD
Mazama Science
206-708-5028
mazamascience.com

	[[alternative HTML version deleted]]

Hi Jonathan,

Re: this note: no visible binding for global variable ?datetime?

In programming and packages, it is recommended to use special versions of
dplyr?s single table verbs, e.g., use `filter_()` as opposed to `filter()`.
Note the underscore. The ?underscore? functions use standard evaluation
instead of non-standard evaluation. This vignette contains more details:

https://cran.rstudio.com/web/packages/dplyr/vignettes/nse.html

HTH,
Jenny

On Aug 10, 2015, at 3:35 PM, Jonathan Callahan <

jonathan at mazamascience.com> wrote:

Greetings,

I'm using dplyr inside of another package with examples like this:

data <- dplyr::filter(data, datetime >= trange[1], datetime <= trange[2])


When I run my package through R CMD check I get the following NOTES:

monitorSubsetData: no visible binding for global variable ?datetime?


I already have dplyr listed in the package Depends: section of the
DESCRIPTION.

I'm also encountering

no visible global function definition for ?matches?


when I try to use the dplyr internal function matches().

Is there any way to allow for dplyr syntactic sugar inside of my package

or

do I need to be pedantic and say data$datetime in the first example and
dplyr::matches in the second? (Will dplyr::matches even work when it is

not

an exported function?)

Thanks,

Jon

--
Jonathan Callahan, PhD
Mazama Science
206-708-5028
mazamascience.com

      [[alternative HTML version deleted]]