从JSON文件创建同现列表

import json

# 读取JSON文件
with open('data.json', 'r') as file:
    data = json.load(file)

# 提取信息并构建同现列表
cooccurrence_matrix = {}
for item in data:
    # 假设JSON文件中的数据结构为{"item1": ["item2", "item3", ...], ...}
    for related_item in data[item]:
        if item not in cooccurrence_matrix:
            cooccurrence_matrix[item] = {}
        if related_item not in cooccurrence_matrix[item]:
            cooccurrence_matrix[item][related_item] = 0
        cooccurrence_matrix[item][related_item] += 1

# 打印同现列表
for item in cooccurrence_matrix:
    print(item + ":")
    for related_item in cooccurrence_matrix[item]:
        print("- " + related_item + ": " + str(cooccurrence_matrix[item][related_item]))