2D-FFTLog: Generalized FFTLog algorithm for non-Gaussian covariance matrices

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Ada Coda
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2D-FFTLog: Generalized FFTLog algorithm for non-Gaussian covariance matrices

Post by Ada Coda » Tue Jul 07, 2020 7:16 am

2D-FFTLog: Generalized FFTLog algorithm for non-Gaussian covariance matrices

Abstract: 2D-FFTLog takes the FFTLog algorithm for 1D Hankel transforms and generalizes it for 2D Hankel transforms. The algorithm is useful for efficiently computing non-Gaussian covariance matrices of cosmological 2-point statistics in configuration space from Fourier space covariances. Fast bin-averaging method is also developed for both the logarithmic binning and general binning choices. C and Python versions of the code are available.

Credit: Fang, Xiao

Site: https://github.com/xfangcosmo/2DFFTLog
https://ui.adsabs.harvard.edu/abs/2020MNRAS.tmp.1865F

Bibcode: 2020ascl.soft06004F

ID: ascl:2006.004
Last edited by Ada Coda on Tue Jul 07, 2020 7:16 am, edited 1 time in total.
Reason: Updated code entry.

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