added logging, use index (id) for sql queries (id hardcoded atm), added newer version of EXPOSURE paper

src/DoresA/ttl.py

@@ -5,5 +5,31 @@ def standard_deviation(array):
     return np.std(array)
 
 
+def changes(array):
+    current = array[0]
+    changes = 0
+
+    for item in array:
+        if item != current:
+            changes += 1
+        current = item
+    return changes
+
+
+# specific ranges: [0, 1], [1, 100], [100, 300], [300, 900], [900, inf]
+def specific_range(ttl):
+    specific_ttl_ranges = 4  # default is [900, inf]
+
+    if 0 < ttl <= 1:
+        specific_ttl_ranges = 0
+    elif 1 < ttl <= 100:
+        specific_ttl_ranges = 1
+    elif 100 < ttl <= 300:
+        specific_ttl_ranges = 2
+    elif 300 < ttl <= 900:
+        specific_ttl_ranges = 3
+    return specific_ttl_ranges
+
+
 if __name__ == "__main__":
     exit()