Make arbitrarily structured, arbitrary-dimension boxes and log-normal mocks.
powerbox
is a pure-python code for creating density grids (or boxes) that have an arbitrary two-point distribution
(i.e. power spectrum). Primary motivations for creating the code were the simple creation of log-normal mock galaxy
distributions, but the methodology can be used for other applications.
- Works in any number of dimensions.
- Really simple.
- Arbitrary isotropic power-spectra.
- Create Gaussian or Log-Normal fields
- Create discrete samples following the field, assuming it describes an over-density.
- Measure power spectra of output fields to ensure consistency.
- Seamlessly uses pyFFTW if available for ~double the speed.
Clone/Download then python setup.py install
. Or just pip install powerbox
.