qdldl | A free LDL factorisation routine | Math library

by osqp C Version: v0.1.6 License: Apache-2.0

X-Ray Key Features Code Snippets(3)Community Discussions(3)Vulnerabilities Install Support

kandi X-RAY | qdldl Summary

qdldl is a C library typically used in Utilities, Math applications. qdldl has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

A free LDL factorisation routine for quasi-definite linear systems: Ax=b.

Support

Quality

Security

License

Reuse

Support

qdldl has a low active ecosystem.

It has 62 star(s) with 34 fork(s). There are 11 watchers for this library.

It had no major release in the last 12 months.

There are 2 open issues and 14 have been closed. On average issues are closed in 28 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of qdldl is v0.1.6

Quality

qdldl has 0 bugs and 0 code smells.

Security

qdldl has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

qdldl code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

qdldl is licensed under the Apache-2.0 License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

qdldl releases are available to install and integrate.

Installation instructions, examples and code snippets are available.

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qdldl Key Features

No Key Features are available at this moment for qdldl.

qdldl Examples and Code Snippets

QDLDL,Citing

Lines of Code : 11

License : Permissive (Apache-2.0)

Copy

@article{osqp,
  author  = {Stellato, B. and Banjac, G. and Goulart, P. and Bemporad, A. and Boyd, S.},
  title   = {{OSQP}: an operator splitting solver for quadratic programs},
  journal = {Mathematical Programming Computation},
  year    = {2020},

Including in a cmake project

Lines of Code : 8

License : Permissive (Apache-2.0)

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# Add project
add_subdirectory(qdldl)

# Link static library
target_link_libraries (foo qdldlstatic)

# Link shared library
target_link_libraries (foo qdldl)

add_library(foo foo.c foo.h $)

QDLDL,Getting started,Build

Lines of Code : 4

License : Permissive (Apache-2.0)

Copy

mkdir build
cd build
cmake ..
cmake --build .

Community Discussions

Trending Discussions on qdldl

Multipoint(df['geometry']) key error from dataframe but key exist. KeyError: 13 geopandas

Stop GLPK from printing log messages when using cvxpy

Failed building wheel for qdldl (when installing cvxpy)

QUESTION

Multipoint(df['geometry']) key error from dataframe but key exist. KeyError: 13 geopandas

Asked 2021-Oct-11 at 14:51

data source: https://catalog.data.gov/dataset/nyc-transit-subway-entrance-and-exit-data

I tried looking for a similar problem but I can't find an answer and the error does not help much. I'm kinda frustrated at this point. Thanks for the help. I'm calculating the closest distance from a point.

...

ANSWER

Answered 2021-Oct-11 at 14:21

geopandas 0.10.1

have noted that your data is on kaggle, so start by sourcing it
there really is only one issue shapely.geometry.MultiPoint() constructor does not work with a filtered series. Pass it a numpy array instead and it works.
full code below, have randomly selected a point to serve as gpdPoint

Source https://stackoverflow.com/questions/69521034

QUESTION

Stop GLPK from printing log messages when using cvxpy

Asked 2021-Mar-21 at 03:34

I don't want my code to print anything to the terminal.

Right now, the line I'm running is:

prob.solve(cp.GLPK_MI, glpk={'msg_lev': 'GLP_MSG_OFF'}, verbosity=False)

And it's displaying the text:

Long-step dual simplex will be used

I've looked at this (which has been closed) and this (which doesn't seem to work) so far, but don't know the right options to pass to get the code to not print anything.

How can I stop the GLPK solver from displaying text?

If you want an example to test it for yourself, below is my full runnable example code (which can be understood by looking here):

...

ANSWER

Answered 2021-Mar-21 at 03:34

Unfortunately, the message is generated by GLPK 4.65, regardless of the GLP_MSG_* option used.

However, it appears that version 5.0 has fixed this, see this glpk-help mailing-list message from the library maintainer:

To fix the bug please replace lines 923-930 in glpk/src/draft/glpios03.c

Source https://stackoverflow.com/questions/66466563

QUESTION

Failed building wheel for qdldl (when installing cvxpy)

Asked 2021-Jan-28 at 08:23

Independent whether I install using pip or from source, whether I use python2 or python3 I can't install cvxpy. I've tried now over four hours and I still fail. The github pages of cvxpy or qdldl wouldn't give me any solution. I installed the packages which led to other errors with no success. Any hints are appreciated.

...

ANSWER

Answered 2021-Jan-28 at 08:23

You can install a version of osqp < 0.6.2, which does not depend on qdldl-python to install cvxpy.

Source https://stackoverflow.com/questions/65920955

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install qdldl

To start using QDLDL, first clone the repository.
To build QDLDL, you need to install cmake and run.
qdldl_example: a code example from examples/example.c
libqdldl: a static and a dynamic versions of the library.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

Find more information at: