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I think the primitive added in #204 may not support automatic differentiation and batching transforms as we did not define Jacobian vector product and transpose operations (for autodiff) and a batcher…
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I am trying to run the cross-correlation only fit and I am unable to fix the parameter ``bias_eta_CIV(eff)``. If I do so, the fit fails.
This is related to the option ``new_metals``, if I run witho…
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Right now both `AstronomicalObject` and `DesiQuasarCatalogue` compute the HEALPix of each line-of-sight but not necessarily using the same `in_nside`.
Some details:
- The HEALPix in `Astronomical…
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Actually `Healpix.jl` does not have support to AD engines like `Zygote.jl` or similar. However, adding support to it is straightforward, as SHT is a linear operator and the mathematical formulas for t…
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I am wondering if some convenience code or doc example of how to go from the healpix range sets to a MOC might be useful.
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My understanding is that the spectra are grouped by healpix pixels. There is no column for the HEALPix label.
The same object can have different targetid's for different PROGRAMs. These can be as…
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Healpix come in a variety of resolutions, from 12 pixels on the lowest end to 3,458,764,513,820,540,928 on the highest end. For some FITS files, the resolution is given in Healpix, but for most, it i…
ywyw updated
10 years ago
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Currently the catalog representation copies the dask data frame lazy representation, which confuses users to thinking the data has been loaded, especially with the hipscat id column. Some other way of…
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I vaguely remember there being some sort of aliasing issue regarding changing the gridding size going into Healpix. I recently ran into that again.
Bryna, can you remind me what the issue is...and…
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At LINCC Frameworks, we are working on spatial algorithms using HEALPix grids, most over on cross-matching. The minimum distance between opposite edges and other geometrical properties of the HEALPix …