Adds activity to csv trace

pydtn/traces/csvtrace.py

@@ -11,8 +11,10 @@ class CSVTrace(Trace):
         if not time == 'time' and a == 'a' and b == 'b' and state == 'state':
             raise ValueError('improperly formatted csv')
 
-        # first row of data is csv is [duration, -1, -1, nodes]
-        duration, _, _, nodes = map(int, next(self.reader))
+        # first row of data is csv is [duration, activity, -1, nodes]
+        duration, _, _, nodes = next(self.reader)
+        duration = int(duration)
+        nodes = int(nodes)
         super().__init__(duration, nodes)
 
     def process(self, **kwargs):

util/shed_reduce

-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 from collections import defaultdict
 import csv
@@ -67,12 +67,13 @@ traces.sort()
 
 duration = traces[-1][0] + SLOT_SIZE
 nodes = next(node_id)
+activity = (0.5*len(traces)) / ((nodes*(nodes-1))*0.5*(duration/SLOT_SIZE))
 
 path = sys.argv[1].split('.csv')[0] + '_reduced.csv'
 with open(path, 'w') as f:
     writer = csv.writer(f)
     writer.writerow(['time', 'a', 'b', 'state'])
-    writer.writerow([duration, -1, -1, nodes])
+    writer.writerow([duration, f'{activity:.3E}', -1, nodes])
     for trace in traces:
         writer.writerow(trace)