assertthat: Easy pre and post assertions

> library(assertthat)

バージョン: 0.1

関数名 概略
are_equal Are two objects equal?
assert_that Assert that certain conditions are true.
assertions-file Useful test related to files
has_args Check a function has specified arguments
has_attr Has attribute or name?
is.count Assert input is a scalar. Missing is functions.
noNA Does object contain any missing values?
not_empty Check an object doesn't have any empty dimensions
on_failure Custom failure messages for assertions.
validate_that Validate that certain conditions are true.