CODEWITHSUNDEEP
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Klausos Klausos
Klausos Klausos

Reputation: 16050

Jiddle for executing R function published on OpenCPU

I uploaded my R package to GitHub and then published it on OpenCPU as explained here.

https://public.opencpu.org/ocpu/github/Klausos9/test/R/test/print

test is a function that contains squared root estimation formula.

Now, in JFiddle, I am trying to make a simple Call of this function using HTTP API. However, I cannot make it working. Any idea?

http://jsfiddle.net/WVWCR/49/

But when I click the Run button, it says:

R returned an error: unused argument (input = input)

In call:
test(input = input)

Upvotes: 0

Views: 168

Answers (1)

B.Shankar
B.Shankar

Reputation: 1281

Try changing the ocpu.rpc call to:

var req = ocpu.rpc("test",{
    x : mydata                        // <--- input : mydata
  }, function(output){
    $("tbody").empty();
    $.each(output, function(index, value){
      var html = "<tr><td>" + value.x + "</td><td>" + value.tv + "</td></tr>";
    $("tbody").append(html);
});

The error is coming because your function call passes an argument named input while your function is expecting an argument named x.

EDIT

The full corrected script (for the one mentioned in comments below) :- 

  ocpu.seturl("//public.opencpu.org/ocpu/github/Klausos9/test/R")

  //some example data
  //to run with different data, edit and press Run at the top of the 
  //page
  var mydata = 2;

  //call R function: tvscore::tv(input=data)
  $("#submitbutton").click(function(){      // <--- needed
      var req = ocpu.rpc("test",{
          x : mydata                        // <--- changed; input : mydata
        }, function(output){
         $("#output").text(output);         // <--- changed; output.message
      });

    //optional
    req.fail(function(){
      alert("R returned an error: " + req.responseText); 
    });
  });

Upvotes: 1

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