Rename `n_max` to `e_max`

n is for node number, e for eddy number at a given date.

Convert_Matlab/overlap_v6.py

@@ -23,8 +23,8 @@ def convert_id(node_index):
     shapefiles.
 
     """
-    k = (node_index - 1) // n_max
-    eddy_index = node_index - k * n_max
+    k = (node_index - 1) // e_max
+    eddy_index = node_index - k * e_max
     return date_index(date_num[k]), eddy_index
 
 orientation = sys.argv[1] # "cyclo" or "anti"
@@ -35,8 +35,8 @@ n_eddies = sio.loadmat(f"N{orientation}.mat", squeeze_me = True)\
 date_num = sio.loadmat("date_num.mat", squeeze_me = True)["date_num"]
 n_dates = n_eddies.size
 print("n_dates =", n_dates)
-n_max = id_child.shape[0]
-print("n_max =", n_max)
+e_max = id_child.shape[0]
+print("e_max =", e_max)
 
 with open(f"edgelist_{orientation}.csv", "w", newline = '') as edgelist:
     writer = csv.writer(edgelist, delimiter = ' ', lineterminator = "\n")