nessai-models 0.1.0

Models for nessai

nessai-models

Models for use with the nested sampling package nessai.

Included models

• n-dimensional unit Gaussian
• n-dimensional HalfGaussian
• n-dimensional Rosenbrock
• n-dimensional mixture of Gaussians
• Gaussian mixture using data to based on this example from cpnest
• n-dimensional Egg Box based on the version in Feroz et al. 2008
• n-dimensional Pyramid-like model

Requirements

nessai_models requires:

• numpy
• scipy
• nessai>=0.6.0

Installation

We recommend following the installation instructions for nessai and then installing nessai_models since it shares all of its dependencies with nessai.

nessai_models can be install from PyPI using

pip install nessai-models

Example usage

Below is an example of using nessai_models so configure a 4-dimensional Gaussian and then sample it using nessai.

from nessai import FlowSampler
from nessai_models import Gaussian

model = Gaussian(4)
fs = FlowSampler(model, output='example/')
fs.run()