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ss/daily filter #88

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merged 4 commits into from
Sep 25, 2024
Merged

ss/daily filter #88

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5c23218
fix(cal_utils): minor updates to guess_fwhm and interpolate_gains method
Sep 13, 2024
b1a10d6
feat(tools): update fast_pack_product_array to handle multi-dim arrays
Sep 13, 2024
4b43b13
Merge branch 'master' into ss/daily-filter
Sep 20, 2024
8021514
docs(tools): update docstring for fast_pack_product_array
Sep 25, 2024
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4 changes: 2 additions & 2 deletions ch_util/cal_utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1998,7 +1998,7 @@ def guess_fwhm(freq, pol="X", dec=None, sigma=False, voltage=False, seconds=Fals

# Divide by declination to convert to degrees hour angle
if dec is not None:
sig /= np.cos(dec)
sig = sig / np.cos(dec)

# If requested, convert to seconds
if seconds:
Expand Down Expand Up @@ -2365,7 +2365,7 @@ def interpolate_gain(freq, gain, weight, flag=None, length_scale=30.0):
train = np.flatnonzero(flag[:, ii])
test = np.flatnonzero(~flag[:, ii])

if train.size > 0:
if (train.size > 0) and (test.size > 0):
xtest = x[test, :]

xtrain = x[train, :]
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12 changes: 7 additions & 5 deletions ch_util/tools.py
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Expand Up @@ -2061,17 +2061,19 @@ def fast_pack_product_array(arr):
more general.
"""

assert arr.ndim == 2
assert arr.shape[0] == arr.shape[1]
assert arr.ndim >= 2
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assert arr.shape[-1] == arr.shape[-2]

nfeed = arr.shape[0]
nfeed = arr.shape[-1]
nprod = (nfeed * (nfeed + 1)) // 2

ret = np.zeros(nprod, dtype=np.float64)
shp = arr.shape[:-2] + (nprod,)

ret = np.zeros(shp, dtype=arr.dtype)
iout = 0

for i in range(nfeed):
ret[iout : (iout + nfeed - i)] = arr[i, i:]
ret[..., iout : (iout + nfeed - i)] = arr[..., i, i:]
iout += nfeed - i

return ret
Expand Down