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Project Description

PyStan provides a Python interface to Stan, a package for Bayesian inference using the No-U-Turn sampler, a variant of Hamiltonian Monte Carlo.

For more information on Stan and its modeling language, see the Stan User’s Guide and Reference Manual at http://mc-stan.org/.

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Detailed Installation Instructions

Detailed installation instructions can be found in the installation_beginner.md file

Quick Installation

NumPy and Cython (version 0.22 or greater) are required. matplotlib is optional.

PyStan and the required packages may be installed from the Python Package Index using pip.

pip install pystan

Alternatively, if Cython (version 0.22 or greater) and NumPy are already available, PyStan may be installed from source with the following commands

git clone --recursive https://github.com/stan-dev/pystan.git
cd pystan
python setup.py install

If you encounter an ImportError after compiling from source, try changing out of the source directory before attempting import pystan. On Linux and OS X cd /tmp will work.

Example

import pystan
import numpy as np
import matplotlib.pyplot as plt

schools_code = """
data {
    int<lower=0> J; // number of schools
    real y[J]; // estimated treatment effects
    real<lower=0> sigma[J]; // s.e. of effect estimates
}
parameters {
    real mu;
    real<lower=0> tau;
    real eta[J];
}
transformed parameters {
    real theta[J];
    for (j in 1:J)
        theta[j] <- mu + tau * eta[j];
}
model {
    eta ~ normal(0, 1);
    y ~ normal(theta, sigma);
}
"""

schools_dat = {'J': 8,
               'y': [28,  8, -3,  7, -1,  1, 18, 12],
               'sigma': [15, 10, 16, 11,  9, 11, 10, 18]}

fit = pystan.stan(model_code=schools_code, data=schools_dat,
                  iter=1000, chains=4)

print(fit)

eta = fit.extract(permuted=True)['eta']
np.mean(eta, axis=0)

# if matplotlib is installed (optional, not required), a visual summary and
# traceplot are available
fit.plot()
plt.show()
Release History

Release History

2.12.0.0

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2.8.0.2

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2.5.0.1

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2.5.0.0

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2.4.0.3

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2.4.0.2

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2.4.0.1

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2.4.0.0

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2.1.0.1

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2.1.0.0

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2.0.1.3

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2.0.1.2

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2.0.1.1

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2.0.1.0

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2.0.0.1

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2.0.0.0

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0.2.2

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0.2.1

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0.2.0

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0.1.1

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Download Files

Download Files

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
pystan-2.12.0.0-cp27-cp27m-macosx_10_6_intel.macosx_10_9_intel.macosx_10_9_x86_64.macosx_10_10_intel.macosx_10_10_x86_64.whl (41.3 MB) Copy SHA256 Checksum SHA256 cp27 Wheel Sep 17, 2016
pystan-2.12.0.0-cp27-cp27m-manylinux1_i686.whl (58.1 MB) Copy SHA256 Checksum SHA256 cp27 Wheel Sep 17, 2016
pystan-2.12.0.0-cp27-cp27m-manylinux1_x86_64.whl (58.7 MB) Copy SHA256 Checksum SHA256 cp27 Wheel Sep 17, 2016
pystan-2.12.0.0-cp27-cp27mu-manylinux1_i686.whl (58.1 MB) Copy SHA256 Checksum SHA256 cp27 Wheel Sep 17, 2016
pystan-2.12.0.0-cp27-cp27mu-manylinux1_x86_64.whl (58.7 MB) Copy SHA256 Checksum SHA256 cp27 Wheel Sep 17, 2016
pystan-2.12.0.0-cp34-cp34m-macosx_10_6_intel.macosx_10_9_intel.macosx_10_9_x86_64.macosx_10_10_intel.macosx_10_10_x86_64.whl (41.3 MB) Copy SHA256 Checksum SHA256 cp34 Wheel Sep 17, 2016
pystan-2.12.0.0-cp34-cp34m-manylinux1_i686.whl (58.1 MB) Copy SHA256 Checksum SHA256 cp34 Wheel Sep 17, 2016
pystan-2.12.0.0-cp34-cp34m-manylinux1_x86_64.whl (58.6 MB) Copy SHA256 Checksum SHA256 cp34 Wheel Sep 17, 2016
pystan-2.12.0.0-cp35-cp35m-macosx_10_6_intel.macosx_10_9_intel.macosx_10_9_x86_64.macosx_10_10_intel.macosx_10_10_x86_64.whl (41.3 MB) Copy SHA256 Checksum SHA256 cp35 Wheel Sep 17, 2016
pystan-2.12.0.0-cp35-cp35m-manylinux1_i686.whl (58.1 MB) Copy SHA256 Checksum SHA256 cp35 Wheel Sep 17, 2016
pystan-2.12.0.0-cp35-cp35m-manylinux1_x86_64.whl (58.6 MB) Copy SHA256 Checksum SHA256 cp35 Wheel Sep 17, 2016
pystan-2.12.0.0-cp35-cp35m-win32.whl (39.1 MB) Copy SHA256 Checksum SHA256 cp35 Wheel Sep 17, 2016
pystan-2.12.0.0-cp35-cp35m-win_amd64.whl (39.2 MB) Copy SHA256 Checksum SHA256 cp35 Wheel Sep 17, 2016
pystan-2.12.0.0.tar.gz (16.8 MB) Copy SHA256 Checksum SHA256 Source Sep 16, 2016
pystan-2.12.0.0.zip (31.4 MB) Copy SHA256 Checksum SHA256 Source Sep 16, 2016

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