pspy 1.3.1

Python power spectrum code

pspy is a cosmology code for calculating CMB power spectra and covariance matrices. See the python example notebooks for an introductory set of examples on how to use the package.

• Free software: BSD license

• pspy documentation: https://pspy.readthedocs.io.

• Scientific documentation: https://pspy.readthedocs.io/en/latest/scientific_doc.pdf

Installing

To install, you will need to have or to install numpy. Then, run

$ pip install pspy [--user]

If you plan to develop pspy, it is better to checkout the latest version by doing

$ git clone https://github.com/simonsobs/pspy.git /where/to/clone

Then you can install the pspy library and its dependencies via

$ pip install -e /where/to/clone

The -e option allow the developer to make changes within the pspy directory without having to reinstall at every changes.

Instructions for installing pspy at NERSC are available at INSTALL_NERSC.

Instructions for installing pspy on MAC OS are available at INSTALL_MACOS.

Ipython notebooks

• Reading, writing and plotting SO maps

• Generate spin0 and spin2 spectra for CAR

• Generate spin0 and spin2 spectra for HEALPIX

• Projecting HEALPIX to CAR

• Compute spectra for standard and pure B modes

Others tutorials can be found under the tutorials directory.

Dependencies

• Python >= 3.5

• pyFFTW https://pyfftw.readthedocs.io

• healpy https://healpy.readthedocs.io

• pixell >= 0.7.0 https://pixell.readthedocs.io

Authors

• Thibaut Louis

• Steve Choi

• DW Han

• Xavier Garrido

The code is part of PSpipe the Simons Observatory power spectrum pipeline.