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StanIO

codecov Tests

A set of Python functions for data-wrangling in the formats used by the Stan probabalistic programming language.

It is primarily developed for use in cmdstanpy.

Features

  • Writing Python dictionaries to Stan-compatible JSON (with optional support for using ujson for faster serialization)
  • Basic reading of StanCSV files into numpy arrays
  • Parameter extraction from numpy arrays based on StanCSV headers
    • e.g., if you have a matrix[2,3] x in a Stan program, extracting x will give you a (num_draws, 2, 3) numpy array