I meet a error when coding. It is "'a' and 'p' must have same size" This is code: ` %pip install -q node2vec==0.4.6 %pip install -qI gensim==4.3.0` `import networkx as nx import matplotlib.pyplot as plt ` # Create graph `G = nx.erdos_renyi_graph(10, 0.3, seed=1, directed=False)` # Plot graph `plt.figure() plt.axis('off') nx.draw_networkx(G, pos=nx.spring_layout(G, seed=0), node_size=600, cmap='coolwarm', font_size=14, font_color='white' ) import random random.seed(0) import numpy as np np.random.seed(0) def next_node(previous, current, p, q): neighbors = list(G.neighbors(current)) alphas = [] for neighbor in neighbors: if neighbor == previous: alpha = 1/p elif G.has_edge(neighbor, previous): alpha = 1 else: alpha = 1/q alphas.append(alpha) # Normalize the alpha values to create transition probabilities probs = [alpha / sum(alphas) for alpha in alphas]` # Randomly select the new node based on the transition probabilities `next = np.random.choice(neighbors, size=1, p=probs)[0] return next def random_walk(start, length, p, q): walk = [start] for i in range(length): current = walk[-1] previous = walk[-2] if len(walk) > 1 else None next = next_node(previous, current, p, q) walk.append(next) return [str (x) for x in walk] random_walk(0, 8, p=1, q=1) ` I want fix this error and I expect to fix successfully. Why have error "'a' and 'p' must have same size". How to fix it? I have try to adapt some position but it does not change. I need know how to fix it. Continue reading...