图算法书不提供程序代码？

Question

我正在阅读“图算法”的实际示例。当我运行以下代码时：

CALL algo.closeness.stream("User", "FOLLOWS") YIELD nodeId, centrality
RETURN algo.getNodeById(nodeId).id, centrality ORDER BY centrality DESC

它报告错误：

There is no procedure with the name `algo.closeness.stream` registered for this database instance. Please ensure you've spelled the procedure name correctly and that the procedure is properly deployed.

我是“呼叫”功能的新手。如何在Neo4j Desktop中获得此过程。我下载了最新版本的桌面。我是否需要安装其他软件？

Answer 1