The errorist package is designed to provide support for
newcomers to R who are learning how to write code.
Philosophically, errorist takes the position of being as
invisible as possible. To achieve the invisibility, on package load,
handlers to receive error and warning message are automatically created
and applied. These handlers propogate the messages raised by R
into the searcher
package, which automatically searches the contents on Google by default.
To use errorist in a causal manner, please type:
To remove the errorist handlers, please either call the
disable_errorist() function or detach the package.
During development, many issues can arise. With errorist
enabled, each error is automatically searched. For instance, if we typed
a function that wasn’t defined, we’d get:
#> Error in f() : could not find function "f"
#> Searching query in a web browser ...Outside of errors, the second most common issue is receiving
warnings. Warnings only indicate a recoverable issue
has occurred during a function run. As a result, there can be many
warnings that build up during an estimation routine. If
errorist is enabled, each unique warning will automatically
be searched within its own tab in the browser. As an example, consider
the following function:
many_warnings = function() {
warning("First warning")
warning("Second warning")
warning("Random warning")
warning("Random warning")
}When run, the many_warnings() function will issue
exactly four warnings. However, only three of these
warnings are unique. Thus, there will be exactly three
searches performed after the function finishes its execution. As a
result, the output will be like:
#> Warning messages:
#> 1: In many_warnings() : First warning
#> 2: In many_warnings() : Second warning
#> 3: In many_warnings() : Random warning
#> Searching query in a web browser ...
#> Searching query in a web browser ...
#> Searching query in a web browser ...