slowly() takes a function and modifies it to wait a given
amount of time between each call.
Usage
slowly(f, rate = rate_delay(), quiet = TRUE)Arguments
- f
A function to modify, specified in one of the following ways:
A named function, e.g.
mean.An anonymous function, e.g.
\(x) x + 1orfunction(x) x + 1.A formula, e.g.
~ .x + 1. Only recommended if you require backward compatibility with older versions of R.
- rate
A rate object. Defaults to a constant delay.
- quiet
Hide errors (
TRUE, the default), or display them as they occur?
Value
A function that takes the same arguments as .f, but returns
a different value, as described above.
Adverbs
This function is called an adverb because it modifies the effect of a function (a verb). If you'd like to include a function created an adverb in a package, be sure to read faq-adverbs-export.
See also
Other adverbs:
auto_browse(),
compose(),
insistently(),
negate(),
partial(),
possibly(),
quietly(),
safely()
Examples
# For these example, we first create a custom rate
# with a low waiting time between attempts:
rate <- rate_delay(0.1)
# slowly() causes a function to sleep for a given time between calls:
slow_runif <- slowly(\(x) runif(1), rate = rate, quiet = FALSE)
out <- map(1:5, slow_runif)
#> Retrying in 0.1 seconds.
#> Retrying in 0.1 seconds.
#> Retrying in 0.1 seconds.
#> Retrying in 0.1 seconds.