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fix: force flagged averaged data to be inf #975

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Aug 9, 2024
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fix: force flagged averaged data to be inf #975

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6 changes: 5 additions & 1 deletion hera_cal/lst_stack/averaging.py
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Original file line number Diff line number Diff line change
Expand Up @@ -708,9 +708,13 @@ def average_and_inpaint_simultaneously(
data=auto_stack.data.transpose((1, 0, 2, 3)),
flags=auto_stack.flags.transpose((1, 0, 2, 3)),
nsamples=auto_stack.nsamples.transpose((1, 0, 2, 3)),
get_std=False, get_mad=False, inpainted_mode=False, mean_fill_value=0.0
get_std=False, get_mad=False, inpainted_mode=False, mean_fill_value=np.inf
)

# Something weird happens in reduce_lst_bins due to MaskedArrays, and the flagged
# values don't actually get set to inf properly. We just force it here to be sure.
auto_redavg['data'][auto_redavg['flags']] = np.inf + 0j

# Map antenna polarizations to visibility pol indices for correct noise variance computation
# even for cross-polarized visibilities, which use the auto-polarized autocorrelations.
antpol_to_vispol_idx = {}
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