Science Score: 26.0%
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Low similarity (12.4%) to scientific vocabulary
Repository
Rcpp Example for accessing NLopt
Basic Info
- Host: GitHub
- Owner: eddelbuettel
- Language: C++
- Default Branch: master
- Size: 23.4 KB
Statistics
- Stars: 14
- Watchers: 6
- Forks: 3
- Open Issues: 0
- Releases: 0
Metadata Files
README.md
RcppNLoptExample: Rcpp example of using NLopt via nloptr
About
Starting with its 1.2.0 release, the nloptr package by Jelmer Ypma now exports its C symbols in a way that makes it accessible to other R packages without linking easing the installation across operating systems.
This package illustrates this with an example drawn from the NLopt tutorial.
Example
See the (currently single) file src/nlopt.cpp.
How / Why ?
R uses C interfaces. These C interfaces can be exported between packages. So when the
usual library(nloptr) happens, we now also get a number of C functions registered.
And those are enough to run optimization from C++ as we simply rely on the C interface provided. Look careful at the example code: the objective function and the constraint functions are C functions, and the body of our example invokes C functions from NLopt. This just works.
On the other hand, if we tried to use the NLopt C++ interface which brings with it someinterface code we would require linking to that code (which R cannot easily export across packages using its C interface). So C it is.
See Also
This repo builds on, extends, and simplifies an earlier repo by Julien Chiquet to which I contributed a core part of this setup.
Author
Dirk Eddelbuettel
License
GPL (>= 2)
Owner
- Name: Dirk Eddelbuettel
- Login: eddelbuettel
- Kind: user
- Location: Chicago, IL, USA
- Website: https://dirk.eddelbuettel.com
- Twitter: eddelbuettel
- Repositories: 512
- Profile: https://github.com/eddelbuettel
GitHub Events
Total
- Push event: 4
Last Year
- Push event: 4
Issues and Pull Requests
Last synced: 10 months ago
All Time
- Total issues: 1
- Total pull requests: 0
- Average time to close issues: about 4 hours
- Average time to close pull requests: N/A
- Total issue authors: 1
- Total pull request authors: 0
- Average comments per issue: 1.0
- Average comments per pull request: 0
- Merged pull requests: 0
- Bot issues: 0
- Bot pull requests: 0
Past Year
- Issues: 0
- Pull requests: 0
- Average time to close issues: N/A
- Average time to close pull requests: N/A
- Issue authors: 0
- Pull request authors: 0
- Average comments per issue: 0
- Average comments per pull request: 0
- Merged pull requests: 0
- Bot issues: 0
- Bot pull requests: 0
Top Authors
Issue Authors
- adamlei (1)
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Top Labels
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Packages
- Total packages: 1
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Total downloads:
- cran 474 last-month
- Total dependent packages: 0
- Total dependent repositories: 0
- Total versions: 2
- Total maintainers: 1
cran.r-project.org: RcppNLoptExample
'Rcpp' Package Illustrating Header-Only Access to 'NLopt'
- Homepage: https://github.com/eddelbuettel/rcppnloptexample
- Documentation: http://cran.r-project.org/web/packages/RcppNLoptExample/RcppNLoptExample.pdf
- License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
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Latest release: 0.0.2
published over 1 year ago
Rankings
Maintainers (1)
Dependencies
- R >= 3.0.2 depends
- Rcpp * imports
- nloptr >= 1.2.0 imports
- actions/checkout v3 composite