how to import with roxygen packages the pipe operator %>% from dplyr

问题

I want to build a package with some functions i wrote. Now my problem is, that i cannot use the pipe-operator %>% with dplyr. I create the package with roxygen2.

If i write the dplyr-commands without %>%, everything works fine.

inside the code:

#'
#' @import dplyr readr mailR writexl
#' @importFrom dplyr %>%
#' @name %>%
#' 
#' @export
#'

I wrote:

DESCRIPTION

LazyData: true
RoxygenNote: 6.0.1
Imports: dplyr 

roxygen2 generates:

NAMESPACE

...
importFrom(dplyr,"%>%")
...

回答1:

Usually you would import the pipe operator from magrittr.

You could add a file to the R dir of your package that looks somewhat like this:

#' Pipe
#'
#' Put description here
#'
#' @importFrom magrittr %>%
#' @name %>%
#' @rdname pipe
#' @export
#' @param lhs,rhs specify what lhs and rhs are
#' @examples
#' # some examples if you want to highlight the usage in the package
NULL

In addition you have to add magrittr to your imports in the description file of your package.

来源：https://stackoverflow.com/questions/46974439/how-to-import-with-roxygen-packages-the-pipe-operator-from-dplyr