Add

`CITATION`

fileTweak formatting of code in helpfile examples and vignettes

Add subsection to README about GNU Fortran requirement for old versions of the

**gmm**package on macOSBumped the minimum required version of R to be 4.1.0. This is because of the same requirement in

**pbkrtest**, which is a dependency of**car**which is a dependency of**ivreg**Bumped version of

**roxygen2**used to create the package documentationMade use of ellipsis

`...`

in several function definitions safer using the**ellipsis**packageBumped required version of R to 4.3.0 because the

**Matrix**package, which is a dependency of**ivreg**now requires R 4.4.0. CRAN retain a binary version of**Matrix**1.6-5 for the previous release of R, and so the minimum version of R can be 4.3.0 rather than 4.4.0.

Update

**roxygen2**version used to generate documentationReduce the number of functions imported from other packages

Make use of packages in Suggests list conditional on their availability

Remove

**ivtools**from Suggests due to the current failure of its**ahaz**dependency package to build on 3 of the CRAN Linux sub-architectures

- Fix an issue causing an
`R CMD check`

note in R 4.2.0

- Initial submission to CRAN