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Fix PA error calculation in gaul2srl.py #429

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Fix PA error calculation in gaul2srl.py #429

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3fe9662
Fix PA error calculation in `gaul2srl.py`
AlexKurek Sep 6, 2026
2ebd49f
Merge branch 'lofar-astron:master' into Fix-PA-error-calculation-in-g…
AlexKurek Sep 7, 2026
dfac768
Use scipy
AlexKurek Sep 7, 2026
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9 changes: 8 additions & 1 deletion bdsf/gaul2srl.py
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@
from . import mylogger
import numpy as N
from . import functions as func
from scipy.stats import circstd
N.seterr(divide='raise')


Expand Down Expand Up @@ -502,7 +503,13 @@ def process_Multiple(self, img, g_sublist, mask, src_index, isrc, subim, isl, de
mompara4E = N.nanstd(mompara4_MC)
if mompara4E > 2.0*mompara[4]:
mompara4E = 2.0*mompara[4] # Don't let errors get too large
mompara5E = N.nanstd(mompara5_MC)

# Use circular statistics for Position Angle error.
valid_mompara5_MC = mompara5_MC[~N.isnan(mompara5_MC)]
if len(valid_mompara5_MC) > 0:
mompara5E = circstd(valid_mompara5_MC, high=180.0, low=0.0)
else:
mompara5E = N.nan
if mompara5E > 2.0*mompara[5]:
mompara5E = 2.0*mompara[5] # Don't let errors get too large
else:
Expand Down