Merge branch 'sybenzvi/csv-to-sql' of github.com:SNEWS2/SNEWS_Coincid…

…ence_System into sybenzvi/csv-to-sql
SNEWS2 · Aug 14, 2024 · 486f316 · 486f316
2 parents 61a8d27 + 7b3ba28
commit 486f316
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/snews_cs/cs_stats.py b/snews_cs/cs_stats.py
@@ -3,6 +3,10 @@
 
 def ncr(n, r):
     f = math.factorial
+    # if the HB cache is empty, n-r returns negative number for which factorial is not defined
+    # as a temporary fix, let's return 0
+    if n-r < 0:
+        return 0
     return int(f(n) / f(r) / f(n - r))
 
 def cache_false_alarm_rate(cache_sub_list, hb_cache):