Package Health Score

88 / 100

security
No known security issues
popularity
Popular
maintenance
Healthy
community
Active

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pystan
80

Popularity

Popular

Total Weekly Downloads (610,652)

GitHub Stars: 139
Forks: 69
Contributors: 40

Direct Usage Popularity

The PyPI package cmdstanpy receives a total of 610,652 downloads a week. As such, we scored cmdstanpy popularity level to be Popular.

Based on project statistics from the GitHub repository for the PyPI package cmdstanpy, we found that it has been starred 139 times.

The download numbers shown are the average weekly downloads from the last 6 weeks.

Security

No known security issues

Security and license risk for latest version

Release Date: Oct 3, 2023
Direct Vulnerabilities: 0
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0
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0
M
0
L
Indirect Vulnerabilities: 0
C
0
H
0
M
0
L
License Risk: 0
H
0
M
0
L

All security vulnerabilities belong to production dependencies of direct and indirect packages.

License

BSD-3-Clause

Security Policy

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Maintenance

Healthy

Commit Frequency

Open Issues: 26
Open PR: 3
Last Release: 2 months ago
Last Commit: 26 days ago

Further analysis of the maintenance status of cmdstanpy based on released PyPI versions cadence, the repository activity, and other data points determined that its maintenance is Healthy.

We found that cmdstanpy demonstrates a positive version release cadence with at least one new version released in the past 3 months.

As a healthy sign for on-going project maintenance, we found that the GitHub repository had at least 1 pull request or issue interacted with by the community.

Community

Active

Readme: Yes
Contributing.md: Yes
Code of Conduct: No
Contributors: 40
Funding: Yes

With more than 10 contributors for the cmdstanpy repository, this is possibly a sign for a growing and inviting community.

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Package

Python Versions Compatibility: >=3.8

Age: 4 years
Latest Release: 2 months ago
Dependencies: 4 Direct
Versions: 39
Maintainers: 3
Wheels: OS Independent

Not sure how to use cmdstanpy?

To help you get started, we've collected the most common ways that cmdstanpy is being used within popular public projects.

stan-dev / cmdstanpy / test / test_model.py View on Github

CODE = """data {
  int N;
  int y[N];
}
parameters {
  real theta;
}
model {
  theta ~ beta(1,1);  // uniform prior on interval 0,1
  y ~ bernoulli(theta);
}
"""

BERN_STAN = os.path.join(DATAFILES_PATH, 'bernoulli.stan')
BERN_EXE = os.path.join(DATAFILES_PATH, 'bernoulli' + EXTENSION)


class CmdStanModelTest(unittest.TestCase):

    # pylint: disable=no-self-use
    @pytest.fixture(scope='class', autouse=True)
    def do_clean_up(self):
        for root, _, files in os.walk(DATAFILES_PATH):
            for filename in files:
                _, ext = os.path.splitext(filename)
                if ext.lower() in ('.o', '.d', '.hpp', '.exe', ''):
                    filepath = os.path.join(root, filename)
                    os.remove(filepath)

    def show_cmdstan_version(self):
        print('\n\nCmdStan version: {}\n\n'.format(cmdstan_path()))

View more ways to use cmdstanpy

CmdStanPy

CmdStanPy is a lightweight pure-Python interface to CmdStan which provides access to the Stan compiler and all inference algorithms. It supports both development and production workflows. Because model development and testing may require many iterations, the defaults favor development mode and therefore output files are stored on a temporary filesystem. Non-default options allow all aspects of a run to be specified so that scripts can be used to distributed analysis jobs across nodes and machines.

CmdStanPy is distributed via PyPi: https://pypi.org/project/cmdstanpy/

or Conda Forge: https://anaconda.org/conda-forge/cmdstanpy

Goals

Clean interface to Stan services so that CmdStanPy can keep up with Stan releases.
Provide access to all CmdStan inference methods.
Easy to install,
- minimal Python library dependencies: numpy, pandas
- Python code doesn't interface directly with c++, only calls compiled executables
Modular - CmdStanPy produces a MCMC sample (or point estimate) from the posterior; other packages do analysis and visualization.
Low memory overhead - by default, minimal memory used above that required by CmdStanPy; objects run CmdStan programs and track CmdStan input and output files.

Source Repository

CmdStanPy and CmdStan are available from GitHub: https://github.com/stan-dev/cmdstanpy and https://github.com/stan-dev/cmdstan

Docs

The latest release documentation is hosted on https://mc-stan.org/cmdstanpy, older release versions are available from readthedocs: https://cmdstanpy.readthedocs.io

Licensing

The CmdStanPy, CmdStan, and the core Stan C++ code are licensed under new BSD.

Example

import os
from cmdstanpy import cmdstan_path, CmdStanModel

# specify locations of Stan program file and data
stan_file = os.path.join(cmdstan_path(), 'examples', 'bernoulli', 'bernoulli.stan')
data_file = os.path.join(cmdstan_path(), 'examples', 'bernoulli', 'bernoulli.data.json')

# instantiate a model; compiles the Stan program by default
model = CmdStanModel(stan_file=stan_file)

# obtain a posterior sample from the model conditioned on the data
fit = model.sample(chains=4, data=data_file)

# summarize the results (wraps CmdStan `bin/stansummary`):
fit.summary()

cmdstanpy dependencies

numpy pandas stanio tqdm

FAQs

What is cmdstanpy?

Python interface to CmdStan. Visit Snyk Advisor to see a full health score report for cmdstanpy, including popularity, security, maintenance & community analysis.

Is cmdstanpy popular?

The python package cmdstanpy receives a total of 610,652 weekly downloads. As such, cmdstanpy popularity was classified as a popular. Visit the popularity section on Snyk Advisor to see the full health analysis.

Is cmdstanpy well maintained?

We found that cmdstanpy demonstrated a healthy version release cadence and project activity. It has a community of 40 open source contributors collaborating on the project. See the full package health analysis to learn more about the package maintenance status.

Is cmdstanpy safe to use?

The python package cmdstanpy was scanned for known vulnerabilities and missing license, and no issues were found. Thus the package was deemed as safe to use. See the full health analysis review.

Last updated on 2 December-2023, at 02:06 (UTC).

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cmdstanpy

Python interface to CmdStan For more information about how to use this package see README

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Popularity

Total Weekly Downloads (610,652)

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Community

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Package

Not sure how to use cmdstanpy?

CmdStanPy

Goals

Source Repository

Docs

Licensing

Example

cmdstanpy dependencies

FAQs

What is cmdstanpy?

Is cmdstanpy popular?

Is cmdstanpy well maintained?

Is cmdstanpy safe to use?

Build a secure application checklist

Select a recommended open source package

Scan your app for vulnerabilities

Fix identified vulnerabilities

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Package Health Score

Explore Similar Packages

Total Weekly Downloads (610,652)

Direct Usage Popularity

Security and license risk for latest version

Commit Frequency

Embed Package Health Score Badge

Keep your project healthy

Check your requirements.txt

Snyk Vulnerability Scanner

Not sure how to use cmdstanpy?

CmdStanPy

Goals

Source Repository

Docs

Licensing

Example

cmdstanpy dependencies

FAQs

What is cmdstanpy?

Is cmdstanpy popular?

Is cmdstanpy well maintained?

Is cmdstanpy safe to use?

Build a secure application checklist

Select a recommended open source package

Scan your app for vulnerabilities

Source Code

Open Source

Container

Config

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