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replacing median with 50th percentile #97

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replacing median with 50th percentile #97

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d651eb3
replacing median with 50th percentile
Sep 29, 2021
599bc95
add helper function for np.percentile
Jul 18, 2023
1f8eb46
add test for new helper function _get_true_median()
Jul 18, 2023
f85e4bc
Merge branch 'main' of https://github.com/pytroll/pygac into replacin…
Jul 18, 2023
8717e31
fixed merge conflict
Jul 18, 2023
07d4de7
add keyword to interpolation
Jul 18, 2023
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10 changes: 5 additions & 5 deletions pygac/reader.py
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Original file line number Diff line number Diff line change
Expand Up @@ -817,7 +817,7 @@ def correct_times_median(self, year, jday, msec):
msec_lineno = self.lineno2msec(self.scans["scan_line_number"])

jday = np.where(np.logical_or(jday < 1, jday > 366),
np.median(jday), jday)
np.percentile(jday, 50, interpolation='nearest'), jday)
if_wrong_jday = np.ediff1d(jday, to_begin=0)
jday = np.where(if_wrong_jday < 0, max(jday), jday)

Expand All @@ -827,7 +827,7 @@ def correct_times_median(self, year, jday, msec):
if if_wrong_msec[0] != 0:
msec = msec[0] + msec_lineno
else:
msec0 = np.median(msec - msec_lineno)
msec0 = np.percentile(msec - msec_lineno, 50, interpolation='nearest')
msec = msec0 + msec_lineno

if_wrong_msec = np.ediff1d(msec, to_begin=0)
Expand All @@ -846,9 +846,9 @@ def correct_times_median(self, year, jday, msec):
msec = msec[0] + msec_lineno
# Otherwise use median time stamp
else:
year = np.median(year)
jday = np.median(jday)
msec0 = np.median(msec - msec_lineno)
year = np.percentile(year, 50, interpolation='nearest')
jday = np.percentile(jday, 50, interpolation='nearest')
msec0 = np.percentile(msec - msec_lineno, 50, interpolation='nearest')
msec = msec0 + msec_lineno

return year, jday, msec
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