The @examplesIf
tag implements conditional examples, that do not run
when running example()
and R CMD check
, unless some condition holds.
You can use this mechanism to avoid running some examples on CRAN and/or
during R CMD check
, without adding boilerplate code to the examples
themselves. The following example only runs if the computer is online:
#' @examplesIf curl::has_internet() #' curl::curl_fetch_memory("https://httpbin.org/status/200")
If you never want to run an example, use FALSE
as the condition. This
makes sense for examples that take a very long time to run:
#' @examplesIf FALSE #' some very long running computation...
To support @examplesIf
in R6 classes you need to use the roxygenlabs_rd
roclet. E.g. add this to DESCRIPTION
:
Roxygen: { library(roxygenlabs); list(markdown = TRUE, roclets = c("collate", "namespace", "roxygenlabs_rd")) }
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