powerbox

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rectangular box

2

Hi, it appears that the powerbox can only apply to a cube box. Would you consider extending its application to a rectangular box ? It would be useful for mimicking...

panstarrs

Deviations from Parseval's theorem

6

Hey, thanks for the package. Though there is a bug(feature) in your code. If you consider Parseval's theorem you can theoretically compute the variance of the generated GRF from its...

egorssed

Input/Output Power spectra not matching

11

Thanks for the repo :) It's very clear and easy to use. I am having issues generating a density field with nbodykit's power spectrum and powerbox, maybe you can help...

florpi

Generating GRF with Odd vs. Even Number of Pixels

9

Hi! I tried to generate 2D GRFs (using powerbox.Powerbox as shown [here](https://powerbox.readthedocs.io/en/latest/demos/getting_started.html#Create-a-2D-Gaussian-field-with-power-law-power-spectrum)), but have run into issues depending on whether I use an odd or even number of pixels when...

bmbuncher

steven-murray

steven-murray

steven-murray

Not sure if this is a problem with how powerbox calls pyfftw, or just with pyfftw itself, but bad things can happen when using pyfftw under multiprocessing. Will give more...

steven-murray

The check for length of coords in angular_average_nd should allow coords with length n, not just field.shape

steven-murray

Compatibility with NBodyKit

1

We are using NBodyKit to calculate some power spectra, with [FFTPower](https://nbodykit.readthedocs.io/en/latest/api/_autosummary/nbodykit.algorithms.fftpower.html#nbodykit.algorithms.fftpower.FFTPower). However, this is much more cumbersome and archaic than powerbox, and we were wondering if having a similar kmin/kmax...

liamstaras