add a data cleaning cut to tag incoming muons

This commit adds a data cleaning cut to tag incoming muons by looking for early
OWL hits. It also significantly updates the flasher cut to catch more flashers.
In particular, the flasher cut now does the following:

- loops over *all* paddle cards with at least 4 hits instead of just the paddle
  cards with the most hits
- uses QLX to look for charge outliers in the paddle card
- fixes a few bugs (for example, uninitialized values in the charge array)
- adds a check to to see if the given slot is early with respect to all PMTs
  within 4 meters to catch the case where the flashing channel is missing from
  the event

1 files changed, 6 insertions, 1 deletions

diff --git a/utils/plot b/utils/plot
index 6aa55fa..ac93eda 100755
--- a/utils/plot
+++ b/utils/plot
@@ -16,6 +16,11 @@
 
 from __future__ import print_function, division
 import yaml
+try:
+    from yaml import CLoader as Loader
+except ImportError:
+    from yaml.loader import SafeLoader as Loader
+
 import numpy as np
 from scipy.stats import iqr
 from matplotlib.lines import Line2D
@@ -77,7 +82,7 @@ if __name__ == '__main__':
     for filename in args.filenames:
         print(filename)
         with open(filename) as f:
-            data = yaml.load(f.read())
+            data = yaml.load(f.read(),Loader=Loader)
 
         dx = []
         dy = []