jupyter

#  logging into neo4j
import py2neo
py2neo_graph= py2neo.Graph("*******", user="*****", password="****")
def query_neo4j(query):
       results_generator = py2neo_graph.run(query)
       result_list=results_generator.data()
       return result_list

 

#统计Hc_client节点数
client_q="""match(client:HC_client) return count(client) as client_num"""
client_num=query_neo4j(client_q)

 

# page_rank算法运行

page_rank_q="""CALL algo.pageRank('Person', 'Person_relation',{iterations:20, dampingFactor:0.85, write: true,writeProperty:"pagerank"})

YIELD nodes, iterations, loadMillis, computeMillis, writeMillis, dampingFactor, write, writeProperty"""

page_rank_algo=py2neo_graph.run(page_rank_q)