How to configure R interpreter in zeppelin

[Reminia Scarlet]

I installed binary zeppelin-0.7.1 directly.

And I also installed R related libraries in the centos. 

Also I  configured SPARK_HOME in zeppelin-env.sh,

but zeppelin cant recognize the R interpreter. 

%r
print(1)

paragraph_1429882946244_-381648689's Interpreter r not found
org.apache.zeppelin.interpreter.InterpreterException: 
paragraph_1429882946244_-381648689's Interpreter r not found
        at org.apache.zeppelin.notebook.Note.run(Note.java:605)
        at 
org.apache.zeppelin.socket.NotebookServer.persistAndExecuteSingleParagraph(NotebookServer.java:1641)
        at 
org.apache.zeppelin.socket.NotebookServer.runParagraph(NotebookServer.java:1615)
        at 
org.apache.zeppelin.socket.NotebookServer.onMessage(NotebookServer.java:265)
        at 
org.apache.zeppelin.socket.NotebookSocket.onWebSocketText(NotebookSocket.java:59)
        at 
org.eclipse.jetty.websocket.common.events.JettyListenerEventDriver.onTextMessage(JettyListenerEventDriver.java:128)
        at 
org.eclipse.jetty.websocket.common.message.SimpleTextMessage.messageComplete(SimpleTextMessage.java:69)
        at 
org.eclipse.jetty.websocket.common.events.AbstractEventDriver.appendMessage(AbstractEventDriver.java:65)
        at 
org.eclipse.jetty.websocket.common.events.JettyListenerEventDriver.onTextFrame(JettyListenerEventDriver.java:122)
        at 
org.eclipse.jetty.websocket.common.events.AbstractEventDriver.incomingFrame(AbstractEventDriver.java:161)
        at 
org.eclipse.jetty.websocket.common.WebSocketSession.incomingFrame(WebSocketSession.java:309)
        at 
org.eclipse.jetty.websocket.common.extensions.ExtensionStack.incomingFrame(ExtensionStack.java:214)
        at 
org.eclipse.jetty.websocket.common.Parser.notifyFrame(Parser.java:220)
        at org.eclipse.jetty.websocket.common.Parser.parse(Parser.java:258)
        at 
org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.readParse(AbstractWebSocketConnection.java:632)
        at 
org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.onFillable(AbstractWebSocketConnection.java:480)
        at 
org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
        at java.lang.Thread.run(Thread.java:745)