Fix p-value calculation to match plotting

Author: robertdstein

Diff for: flarestack/core/ts_distributions.py

@@ -438,10 +438,10 @@ def integral(x):
 
         if ts_val > np.median(ts_array):
 
-            val = (ts_val - frac_under) / (1. - frac_under)
+            # val = (ts_val - frac_under) / (1. - frac_under)
 
             cdf = frac_under + frac_over * scipy.stats.chi2.cdf(
-                val, df, loc, scale)
+                ts_val, df, loc, scale)
 
             sig = norm.ppf(cdf)