Function reference • tester

All functions
`has_dimension()`	Has dimension?
`has_factors()`	Has factors?
`has_missing()`	Has missing values, NA, NaN, Inf
`has_names()`	Has or lacks names?
`has_rownames()`	Has or lacks row/column names?
`is_FALSE` `is_TRUE` `is_false` `is_true` `true_or_false`	If TRUE or FALSE
`is_class()`	Is class
`is_dataframe` `is_factor_dataframe` `is_not_dataframe` `is_numeric_dataframe` `is_string_dataframe`	Is data frame
`is_decimal()`	Is decimal
`is_diagonal()`	Is diagonal matrix
`is_even()`	Is even
`is_integer()`	Is integer
`is_logical_matrix` `is_matrix` `is_not_matrix` `is_numeric_matrix` `is_string_matrix`	Is matrix
`is_multidim()`	Test if an object is multi-dimensional
`is_multiple()`	Is multiple
`is_natural()`	Is natural
`is_negative()`	Is negative
`is_negative_decimal()`	Is negative decimal
`is_negative_integer()`	Is negative integer
`is_odd()`	Is even
`is_one_dim()`	Test if an object has one-dimension
`is_positive()`	Is positive
`is_positive_decimal()`	Is positive decimal
`is_positive_integer()`	Is positive integer
`is_rectangular_matrix()`	Is rectangular matrix
`is_negative_scalar` `is_not_scalar` `is_positive_scalar` `is_scalar`	Is scalar
`is_single()`	Is single
`is_single_decimal()`	Is single decimal
`is_single_even()`	Is single even
`is_single_false()`	Is single false
`is_single_logical()`	Is single logical
`is_single_negative()`	Is single negative number
`is_single_negative_decimal()`	Is single negative decimal
`is_single_negative_integer()`	Is single negative integer
`is_single_number()`	Is single number
`is_single_odd()`	Is single odd
`is_single_positive()`	Is single positive number
`is_single_positive_decimal()`	Is single positive decimal
`is_single_positive_integer()`	Is single positive integer
`is_single_string()`	Is single string
`is_single_true()`	Is single true
`is_square_matrix()`	Is square matrix
`is_square_numeric_matrix()`	Is square numeric matrix
`is_string()`	Is string
`is_not_tabular` `is_numeric_tabular` `is_string_tabular` `is_tabular`	Is tabular
`is_lower_triangular` `is_triangular_matrix` `is_upper_triangular`	Is triangular matrix
`is_logical_vector` `is_not_vector` `is_numeric_vector` `is_string_vector` `is_vector`	Is vector
`list_of_logical_vectors` `list_of_numeric_vectors` `list_of_string_vectors` `list_of_vectors`	List of vectors
`list_with_numeric_vectors` `list_with_string_vectors` `list_with_vectors`	List with vectors
`same_class()`	Same Class
`same_dim()`	Same Dimension
`same_length()`	Same Length
`same_mode()`	Same Mode
`same_nrow()`	Same Number of Rows / Columns
`same_type()`	Same Type

Reference

All functions