Check if an argument is an array
Combine multiple checks into one assertion
Check if an argument is a vector of type complex
Check if an argument is a function
Check if an object contains missing values
Check if an object is an element of a given set
Check names to comply to specific rules
Check if an argument is a factor
Check argument inheritance
Check if an object contains infinte values
Check if an argument is a count
Check that an argument is an atomic vector
Check if an argument is a single missing value
Check that an argument is an atomic vector
Check file path for later output
Check if an argument is a percentage
Check if an argument is a flag
Check that an argument is a vector of type numeric
Check if an object is an integerish vector
Quick recursive arguments checks on lists and data frames
Check if an argument is a vector of type logical
Check if an argument is a list
Check if an argument is a single atomic value
Check for existence and access rights of directories
Check file system access rights
Check if an argument is a single integerish value
Check if an argument is a string
Coalesce operator
Check if an argument is a matrix
Check if an argument is vector of type integer
The checkmate package
Check if an argument is named
Check if an argument is a single numeric
Check if object is a subset of a given set
Check if an argument is an environment
Check if an argument is a vector
Convert an argument to an integer
Check if an object contains NaN values
Check if an argument is a vector of type character
Check existence and access rights of files
Check if an argument is NULL
Check if an argument is a data frame
Quick argument checks on (builtin) R types
Check if object is a subset of a given set