Merge pull request #12 from Zymo-Research/fixVarianceCrashWithNequals1

Fixed variance calculation crash
Zymo-Research · Sep 10, 2019 · bc8c5e4 · bc8c5e4
2 parents f67f59a + 9e9bfd0
commit bc8c5e4
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/figaroSupport/fastqHandler.py b/figaroSupport/fastqHandler.py
@@ -457,7 +457,10 @@ def estimateReadLength(path:str, samplesize:int=100, getVariance = False):
     meanReadLength = sum(lengths)/len(lengths)
     if getVariance:
         import statistics
-        lengthVariance = statistics.variance(lengths)
+        if len(lengths) > 1:
+            lengthVariance = statistics.variance(lengths)
+        else:
+            lengthVariance = 0
         return round(meanReadLength), lengthVariance
     return round(meanReadLength)