Tools (mesmer.tools
)¶
-
class
mesmer.tools.
WhiteNoise
(weights=None, sens=None, pol=True)[source] [edit on github]¶ Bases:
object
Simple white noise model. See eqs (1) and (2) from arxiv: 9705188.
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get_pix_var_map
(nside)[source] [edit on github]¶ Function to return a map containing the variance in each pixel at each frequency. This is a product consumed by the
mesmer.likelihood.LogProb
object, and is provided for convenient use with that.- Parameters
- nside: int
Nside parameter of the HEALPix maps to be produced.
- Returns
- ndarray
Array containing the variance in each pixel at each frequency.
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map
(nside, seed=3232)[source] [edit on github]¶ Function to generate a realization of the noise level as a HEALPix map, with a given
nside
.- Parameters
- nside: int
Nside parameter of the HEALPix map to be produced.
- seed: int (optional, default=3232)
RNG seed.
- Returns
- ndarray
Noise realization as a HEALPix map.
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