Displays a list of active clients in this R session, i.e. the names of rre server hosts to which there are open connections.
这个R会话中显示列表中的活跃客户,即有开放式连接的的RRE服务器主机的名称。
用法----------Usage----------
rre.showClients()
值----------Value----------
(hostName,userName) pairs in a data.frame.
(主机名,用户名)对数据框。