Merge branch 'jeffreys-correction-for-quidel' of https://github.com/cmu-delphi/covidcast-indicators into jeffreys-correction-for-quidel

Author: Jingjing Tang

quidel_covidtest/delphi_quidel_covidtest/data_tools.py

@@ -167,7 +167,7 @@ def raw_positive_prop(positives, tests, min_obs):
     # this also elegantly sidesteps 0/0 division.
     tests[tests < min_obs] = np.nan
     # Jeffreys Correction for estimates
-    positive_prop = (positives+0.5) / (tests+1)
+    positive_prop = (positives + 0.5) / (tests + 1)
     se = np.sqrt(_prop_var(positive_prop, tests))
     sample_size = tests
     return positive_prop, se, sample_size