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speed up of merge_idx

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Fabian Joswig 2021-10-29 12:13:04 +01:00
parent 100228d373
commit 96721431c3
1 changed files with 7 additions and 0 deletions
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pyerrors/pyerrors.py
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@ -8,6 +8,7 @@ import autograd.numpy as anp # Thinly-wrapped numpy
from autograd import jacobian
import matplotlib.pyplot as plt
import numdifftools as nd
from itertools import groupby
class Obs:
@ -819,6 +820,12 @@ def merge_idx(idl):
----------
idl -- List of lists or ranges.
"""
# Use groupby to efficiently check whether all elements of idl are identical
g = groupby(idl)
if next(g, True) and not next(g, False):
return idl[0]
if np.all([type(idx) is range for idx in idl]):
if len(set([idx[0] for idx in idl])) == 1:
idstart = min([idx.start for idx in idl])