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# nloptr 2.1.1 This is a patch release to work around a bug in the CRAN checks. Specifically, one of the unit tests for the `isres()` algorithm was failing on some CRAN builds because convergence is stochastic with slightly different results even with the same fixed seed prior to calling the function. # nloptr 2.1.0 This release deprecates the default behavior of the inequality equations in any wrapper function which uses them. Currently, they are calibrated to be >= 0. This version allows for the equations to be consistent with the main `nloptr` function, which requires <= 0. In a future release, the default behavior will switch to assuming the calibration is <= 0, and eventually, the >= 0 behavior will be removed. It also includes a large number of safety and efficiency changes, and an expansion of the unit tests to 100% coverage for all files but one. The major changes include: * Reversed the direction of the inequality equations `hin` and `hinjac` in the wrapper functions which use them, bringing them into compliance with the main `nloptr` call. This addresses [Issue #148](astamm/nloptr#148); * Cleaned the Hock-Schittkowski problem no. 100, Hartmann 6-dimensional, and Powell exponential examples. This addresses [Issue #152](astamm/nloptr#152) and [Issue #156](astamm/nloptr#156); * Updated roxygen version; * Updated maintainer email; * Deal with NA returns from `parallel::detectCores()` (contributed by @jeroen in PR #150); * Setup rhub v2 checks; * Update cmake installation instructions on Mac with brew (#146); * Allow use of equality constraints with COBYLA (#135); * Replaced the unit testing framework of `testthat` with `tinytest` (See [Issue #136](astamm/nloptr#136)); * Brought coverage of `is.nloptr` to 100%. The only file not completely covered by unit tests is `nloptr.c`. The uncovered calls are error messages which get trapped by tests in R before the call gets to C; * Linted package for code correctness and consistency; * Updated vignette, DESCRIPTION, and NEWS; * Updated package website to use bootstrap 5; * Expanded unit tests: coverage now over 97% with no file below 90%; * Removed forcing `C++11`; * Added safety checks to C code; * Added many safety and efficiency enhancements to R code; * Most R code style made self-consistent; * Updated documentation and messages for accuracy and mathematical formatting * Updated Github actions; * Some bugfixes (e.g. in `isres` or the warning in `nl.grad`).
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