Improved documentation of

`diff_cov()`

,`undiff_cov()`

, and`delta()`

.Improved documentation of

`dmvnorm()`

and`rmvnorm()`

. The mean vector can now be of length 1 for convenience. The degenerate case (covariance is zero) is now supported. Also separate dimensions of`Sigma`

can be degenerate for`rmvnorm()`

.Added function

`split_vector_at()`

to split a vector at specific positions.Allow for zero matrix in

`cov_to_chol()`

.Added function

`round_data.frame()`

that rounds`numeric`

columns of a`data.frame`

.Added function

`print_data.frame()`

that prints a (possibly abbreviated)`data.frame`

.Renamed function

`group_data_frame()`

->`group_data.frame()`

.Renamed function

`delete_data_frame_columns()`

->`delete_columns_data.frame()`

.

Added function

`quiet()`

to silence expressions.Added functions

`dtnorm()`

and`dttnorm()`

to calculate the density of a (two-sided) truncated normal distribution.Added function

`correlated_regressors()`

to simulate correlated regressor values.Improved documentation.

Removed functions

`check_date()`

and`find_closest_year()`

(too special, only needed for`{fHMM}`

package).

Added function

`identical_structure()`

to check if two objects have the identical structure.Fixed bug in

`matrix_diagonal_indices()`

: did not always return`integer`

.

- Added function
`vector_occurrence()`

to find the positions of first or last occurrence of unique vector elements.

Added function

`chunk_vector()`

to split a vector into chunks.Added function

`insert_matrix_column()`

to add a column to a matrix.Added function

`insert_vector_entry()`

to add a entry to a vector.Renamed

`basic_package_sticker()`

->`package_logo()`

and added a demo.Added function

`matrix_diagonal_indices()`

that returns the indices of the diagonal elements of a quadratic matrix.Fixed bug in

`check_numeric_vector()`

:`null.ok`

did not work.Added function

`subsets()`

that generates subsets of a vector.Fixed bug in

`system_information()`

: do not fail if information cannot be retrieved.

Removed HMM code and

`plot_sequence()`

function (both do not really fit in this package).Added more vignettes to illustrate use cases.

Fixed bug in checks for matrices by checking for

`NA`

,`NaN`

and infinite values.Increment RoxygenNote to 7.3.0.

Added function

`system_information()`

that returns some general system level information.Added functions

`check_list_of_lists()`

,`test_list_of_lists()`

, and`assert_list_of_lists()`

.Added functions

`check_numeric_vector()`

,`test_numeric_vector()`

, and`assert_numeric_vector()`

.Fixed a bug in

`merge_lists()`

, where`NULL`

elements got erroneously ignored.

- Fixed bug in
`function_arguments()`

.

- Fixed https://github.com/RcppCore/Rcpp/issues/1287.

Added function

`check_date()`

which checks if the input has the correct date format.Added function

`find_closest_year()`

which finds the closest year to a given date.Added function

`match_numerics()`

which matches the indices of two numeric vectors as good as possible (that means with the smallest possible sum of deviations).Added function

`simulate_markov_chain()`

which simulates a Markov chain.Added function

`sample_transition_probability_matrix()`

which samples a transition probability matrix.Added functions

`test_covariance_matrix()`

,`test_correlation_matrix()`

,`test_transition_probability_matrix()`

, and`test_probability_vector()`

(which are the “test” version of the corresponding “assert” functions).Added argument

`tolerance`

for covariance matrix, correlation matrix, transition probability matrix, and probability vector check functions to account for machine epsilon and avoid false positives.Added functions

`ll_hmm()`

and`simulate_hmm()`

to compute log-likelihood and simulate data from hidden Markov model.Added argument

`on_time_out`

to function`timed()`

that defines what action to take if the evaluation time exceeded (error, warning, or silent).Added support to select

`identifier = "all"`

in`Index`

object and to suppress warnings (if unknown identifiers were selected) (globally) via the`$hide_warnings`

field.Added argument

`logical`

to`Index`

object to combine multiple identifiers either with logical and or logical or.Added function

`unexpected_error()`

that handles an unknown error.Added function

`group_data_frame()`

that groups a`data.frame`

according to the values of a column.Added function

`delete_data_frame_columns()`

that deletes columns of a`data.frame`

.Added function

`renv_development_packages()`

that creates a file that loads development packages so that`{renv}`

can detect and write them to the lockfile.Added function

`plot_sequence()`

that plots a sequence of numbers.Renamed

`Index`

->`Storage`

.Initialized a package website with

`{pkgdown}`

and started to add vignettes.

Added function

`timed()`

which evaluates an expression and interrupts the evaluation after a defined amount of seconds.Added function

`do.call_timed()`

which measures the computation time of a`do.call()`

call.Added function

`try_silent()`

which tries to execute an expression and returns a string with the error message if the execution failed.Added R6 object

`Index`

that provides a simple indexing interface for list elements.Modified

`basic_package_sticker()`

: Option to add brackets to package name, now scales font, the function is no longer exported.Added function

`function_body()`

which extracts the body of a function.Added function

`permutation()`

which creates all permutations of a given vector.Added function

`variable_name()`

which tries to determine the name of a variable passed to a function.Added function

`function_defaults()`

which returns the default function arguments.Added R6 object

`Dictionary`

that provides a simple simple key-value interface.Added function

`merge_lists()`

which merges`list`

s based on their element names.Renamed arguments in function

`timed()`

:`expr`

->`expression`

,`secs`

->`seconds`

.Added argument

`units`

to function`do.call_timed()`

.

- Initial CRAN submission.