如何使用R客户端连接到Rserve [英] how to connect to Rserve with an R client

问题描述

我不确定我是否做对了.

I'm not sure if I am doing this right.

在选项卡1中，打开R，然后在R会话中执行Rserve(port = 6311).我加载变量名称= Hello World"

In tab 1, I open R, then I execute Rserve(port = 6311) inside the R session. I load the variable "name = Hello World"

在选项卡2中，我打开R，然后尝试连接到Rserve.我这样做是:

In tab 2, I open R, then I try to connect to Rserve. I do this by:

c = RSconnect(host ="localhost"，端口6311)

c = RSconnect(host = "localhost", port 6311)

然后我尝试通过以下方式打印问候世界:

I then try to print hello world by:

RSeval(c，name)

RSeval(c, name)

但是它不起作用.我得到:

But it does not work. I get:

RSeval(c，name)中的错误:找不到对象'name'

Error in RSeval(c, name) : object 'name' not found

我在做什么错了?

推荐答案

我从Rserve的作者那里得到了一些信息.更改后，在Rserve中更改的变量将对连接的RSclient可用.特别是我使这些代码正常工作.

I got some information from the author of Rserve. The variable changed in Rserve will be available to RSclient connected after the changing. In particular I got these codes working.

$ ~/bin/R CMD Rserve --RS-enable-control
$ ~/bin/R  

library(RSclient);
c=RS.connect();
RS.server.eval(c,"xx<-1");

## [1] TRUE

RS.close(c)

## NULL

c1=RS.connect();
RS.eval(c1,quote(yy<-xx));

## [1] 1

quit()

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