diff --git a/ausankey/ausankey.py b/ausankey/ausankey.py
index 5bc1d49..ee2c192 100644
--- a/ausankey/ausankey.py
+++ b/ausankey/ausankey.py
@@ -478,19 +478,16 @@ def subplot(self, ii):
         for the first and last cases.
         """
 
-        labelind = 2 * ii
-        weightind = 2 * ii + 1
-
         lastind = 4 if ii < self.num_flow - 1 else 2
         labels_lr = [
-            self.data[labelind],
-            self.data[labelind + 2],
-            self.data[labelind + lastind],
+            self.data[2 * ii],
+            self.data[2 * ii + 2],
+            self.data[2 * ii + lastind],
         ]
         weights_lr = [
-            self.data[weightind],
-            self.data[weightind + 2],
-            self.data[weightind + lastind],
+            self.data[2 * ii + 1],
+            self.data[2 * ii + 1 + 2],
+            self.data[2 * ii + 1 + lastind],
         ]
 
         nodes_lr = [
@@ -498,8 +495,26 @@ def subplot(self, ii):
             self.sort_nodes(labels_lr[1], self.node_sizes[ii + 1]),
         ]
 
-        # Determine sizes of individual subflows
+        # vertical positions
+        y_node_gap = self.node_gap * self.plot_height_nom
+        y_title_gap = self.title_gap * self.plot_height_nom
+        y_frame_gap = self.frame_gap * self.plot_height_nom
+        
+        # horizontal positions
+        x_node_width = self.node_width * self.plot_width_nom
+        x_label_width = self.label_width * self.plot_width_nom
+        x_label_gap = self.label_gap * self.plot_width_nom
+        x_value_gap = self.value_gap * self.plot_width_nom
+        x_left = x_node_width + x_label_gap + x_label_width + ii * (self.sub_width + x_node_width)
+        x_lr = [x_left, x_left + self.sub_width]
+
+        # All node sizes and positions
+
+        node_voffset = [{}, {}]
+        node_pos_bot = [{}, {}]
+        node_pos_top = [{}, {}]
         nodesize = [{}, {}]
+
         for lbl_l in nodes_lr[0]:
             nodesize[0][lbl_l] = {}
             nodesize[1][lbl_l] = {}
@@ -508,13 +523,6 @@ def subplot(self, ii):
                 nodesize[0][lbl_l][lbl_r] = weights_lr[0][ind].sum()
                 nodesize[1][lbl_l][lbl_r] = weights_lr[1][ind].sum()
 
-        # Determine vertical positions of nodes
-        y_node_gap = self.node_gap * self.plot_height_nom
-
-        node_voffset = [{}, {}]
-        node_pos_bot = [{}, {}]
-        node_pos_top = [{}, {}]
-
         for lr in [0, 1]:
             for i, label in enumerate(nodes_lr[lr]):
                 node_height = self.node_sizes[ii + lr][label]
@@ -524,14 +532,6 @@ def subplot(self, ii):
                 node_pos_bot[lr][label] = self.voffset[ii + lr] if i == 0 else next_bot
                 node_pos_top[lr][label] = node_pos_bot[lr][label] + node_height
 
-        # horizontal positions of nodes
-        x_node_width = self.node_width * self.plot_width_nom
-        x_label_width = self.label_width * self.plot_width_nom
-        x_label_gap = self.label_gap * self.plot_width_nom
-        x_value_gap = self.value_gap * self.plot_width_nom
-        x_left = x_node_width + x_label_gap + x_label_width + ii * (self.sub_width + x_node_width)
-        x_lr = [x_left, x_left + self.sub_width]
-
         # Draw nodes
 
         for lr in [0, 1] if ii == 0 else [1]:
@@ -673,8 +673,6 @@ def subplot(self, ii):
         # Place "titles"
         if self.titles is not None:
             last_label = [lbl_l, lbl_r]
-            y_title_gap = self.title_gap * self.plot_height_nom
-            y_frame_gap = self.frame_gap * self.plot_height_nom
             title_x = [x_lr[0] - x_node_width / 2, x_lr[1] + x_node_width / 2]
 
             for lr in [0, 1] if ii == 0 else [1]: