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Merge pull request #114 from fjosw/feat/obs_hash

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hash method for Obs objects
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Fabian Joswig 2022-07-08 10:53:48 +01:00 • committed by GitHub
commit 7737ed4ea0
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pyerrors/obs.py
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@ -1,4 +1,5 @@
import warnings
import hashlib
import pickle
from math import gcd
from functools import reduce
@ -684,6 +685,15 @@ class Obs:
else:
return '{:.0f}({:2.0f})'.format(self.value, self._dvalue)
def __hash__(self):
hash_tuple = (np.array([self.value]).astype(np.float32).data.tobytes(),)
hash_tuple += tuple([o.astype(np.float32).data.tobytes() for o in self.deltas.values()])
hash_tuple += tuple([np.array([o.errsq()]).astype(np.float32).data.tobytes() for o in self.covobs.values()])
hash_tuple += tuple([o.encode() for o in self.names])
m = hashlib.md5()
[m.update(o) for o in hash_tuple]
return int(m.hexdigest(), 16) & 0xFFFFFFFF
# Overload comparisons
def __lt__(self, other):
return self.value < other