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order of C_ell different from HEALPIX! #64

zonca opened this Issue · 2 comments

2 participants

Andrea Zonca crosset
Andrea Zonca

Order of spectra in HEALPIX is .... TE, TB, EB:

while the order in healpy is .... TE, EB, TB:

I fixed the test case on anafast, see related commit.
What is strange is that healpy uses HEALPIX C++ which uses the same convention as the fortran code.

Cyrille, do you have an idea of what might causing this?

Andrea Zonca

internally we use row order anyway, so I think it would be better to use HealPix order for input/output, as it makes more sense to list them in order of amplitude or importance, and better be compatible with HealPix.

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