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-rw-r--r--pyspike/cython/cython_distances.pyx3
1 files changed, 2 insertions, 1 deletions
diff --git a/pyspike/cython/cython_distances.pyx b/pyspike/cython/cython_distances.pyx
index 16780f2..c4f2349 100644
--- a/pyspike/cython/cython_distances.pyx
+++ b/pyspike/cython/cython_distances.pyx
@@ -391,7 +391,8 @@ def coincidence_value_cython(double[:] spikes1, double[:] spikes2,
coinc += 2
if coinc == 0 and mp == 0:
- # empty spike trains -> set mp to one to avoid 0/0
+ # empty spike trains -> spike sync = 1 by definition
+ coinc = 1
mp = 1
return coinc, mp