[Rd] Cannot Compute Box's M (Three Days Trying...)

Sat Oct 28 00:09:04 CEST 2017

Just print the string you are asking to R to evaluate.  It doesn't make 
any sense as an R expression.  Fix that, and things will work.

Duncan Murdoch

On 27/10/2017 3:41 PM, Morkus via R-devel wrote:
> It can't be this hard, right? I really need a shove in the right direction here. Been spinning wheels for three days. Cannot get past the errors.
> 
> I'm doing something wrong, obviously, since I can easily compute the Box's M right there in RStudio
> 
> But I don't see what is wrong below with the coding equivalent.
> 
> The entire code snippet is below. The code fails below on the call to the boxM statistic call.
> 
> PLEASE HELP!!!
> 
> Thanks in advance,
> 
> -------------------------
> 
> rConnection.eval("library('biotools')");
> 
> String inputIris = "5.1,3.5,1.4,0.2,setosa\n" +
> "4.9,3,1.4,0.2,setosa\n" +
> "4.7,3.2,1.3,0.2,setosa\n" +
> "4.6,3.1,1.5,0.2,setosa\n" +
> "5,3.6,1.4,0.2,setosa\n" +
> "5.4,3.9,1.7,0.4,setosa\n" +
> "4.6,3.4,1.4,0.3,setosa\n" +
> "5,3.4,1.5,0.2,setosa\n" +
> "4.4,2.9,1.4,0.2,setosa\n" +
> "4.9,3.1,1.5,0.1,setosa\n" +
> "5.4,3.7,1.5,0.2,setosa\n" +
> "4.8,3.4,1.6,0.2,setosa\n" +
> "4.8,3,1.4,0.1,setosa\n" +
> "4.3,3,1.1,0.1,setosa\n" +
> "5.8,4,1.2,0.2,setosa\n" +
> "5.7,4.4,1.5,0.4,setosa\n" +
> "5.4,3.9,1.3,0.4,setosa\n" +
> "5.1,3.5,1.4,0.3,setosa\n" +
> "5.7,3.8,1.7,0.3,setosa\n" +
> "5.1,3.8,1.5,0.3,setosa\n" +
> "5.4,3.4,1.7,0.2,setosa\n" +
> "5.1,3.7,1.5,0.4,setosa\n" +
> "4.6,3.6,1,0.2,setosa\n" +
> "5.1,3.3,1.7,0.5,setosa\n" +
> "4.8,3.4,1.9,0.2,setosa\n" +
> "5,3,1.6,0.2,setosa\n" +
> "5,3.4,1.6,0.4,setosa\n" +
> "5.2,3.5,1.5,0.2,setosa\n" +
> "5.2,3.4,1.4,0.2,setosa\n" +
> "4.7,3.2,1.6,0.2,setosa\n" +
> "4.8,3.1,1.6,0.2,setosa\n" +
> "5.4,3.4,1.5,0.4,setosa\n" +
> "5.2,4.1,1.5,0.1,setosa\n" +
> "5.5,4.2,1.4,0.2,setosa\n" +
> "4.9,3.1,1.5,0.2,setosa\n" +
> "5,3.2,1.2,0.2,setosa\n" +
> "5.5,3.5,1.3,0.2,setosa\n" +
> "4.9,3.6,1.4,0.1,setosa\n" +
> "4.4,3,1.3,0.2,setosa\n" +
> "5.1,3.4,1.5,0.2,setosa\n" +
> "5,3.5,1.3,0.3,setosa\n" +
> "4.5,2.3,1.3,0.3,setosa\n" +
> "4.4,3.2,1.3,0.2,setosa\n" +
> "5,3.5,1.6,0.6,setosa\n" +
> "5.1,3.8,1.9,0.4,setosa\n" +
> "4.8,3,1.4,0.3,setosa\n" +
> "5.1,3.8,1.6,0.2,setosa\n" +
> "4.6,3.2,1.4,0.2,setosa\n" +
> "5.3,3.7,1.5,0.2,setosa\n" +
> "5,3.3,1.4,0.2,setosa\n" +
> "7,3.2,4.7,1.4,versicolor\n" +
> "6.4,3.2,4.5,1.5,versicolor\n" +
> "6.9,3.1,4.9,1.5,versicolor\n" +
> "5.5,2.3,4,1.3,versicolor\n" +
> "6.5,2.8,4.6,1.5,versicolor\n" +
> "5.7,2.8,4.5,1.3,versicolor\n" +
> "6.3,3.3,4.7,1.6,versicolor\n" +
> "4.9,2.4,3.3,1,versicolor\n" +
> "6.6,2.9,4.6,1.3,versicolor\n" +
> "5.2,2.7,3.9,1.4,versicolor\n" +
> "5,2,3.5,1,versicolor\n" +
> "5.9,3,4.2,1.5,versicolor\n" +
> "6,2.2,4,1,versicolor\n" +
> "6.1,2.9,4.7,1.4,versicolor\n" +
> "5.6,2.9,3.6,1.3,versicolor\n" +
> "6.7,3.1,4.4,1.4,versicolor\n" +
> "5.6,3,4.5,1.5,versicolor\n" +
> "5.8,2.7,4.1,1,versicolor\n" +
> "6.2,2.2,4.5,1.5,versicolor\n" +
> "5.6,2.5,3.9,1.1,versicolor\n" +
> "5.9,3.2,4.8,1.8,versicolor\n" +
> "6.1,2.8,4,1.3,versicolor\n" +
> "6.3,2.5,4.9,1.5,versicolor\n" +
> "6.1,2.8,4.7,1.2,versicolor\n" +
> "6.4,2.9,4.3,1.3,versicolor\n" +
> "6.6,3,4.4,1.4,versicolor\n" +
> "6.8,2.8,4.8,1.4,versicolor\n" +
> "6.7,3,5,1.7,versicolor\n" +
> "6,2.9,4.5,1.5,versicolor\n" +
> "5.7,2.6,3.5,1,versicolor\n" +
> "5.5,2.4,3.8,1.1,versicolor\n" +
> "5.5,2.4,3.7,1,versicolor\n" +
> "5.8,2.7,3.9,1.2,versicolor\n" +
> "6,2.7,5.1,1.6,versicolor\n" +
> "5.4,3,4.5,1.5,versicolor\n" +
> "6,3.4,4.5,1.6,versicolor\n" +
> "6.7,3.1,4.7,1.5,versicolor\n" +
> "6.3,2.3,4.4,1.3,versicolor\n" +
> "5.6,3,4.1,1.3,versicolor\n" +
> "5.5,2.5,4,1.3,versicolor\n" +
> "5.5,2.6,4.4,1.2,versicolor\n" +
> "6.1,3,4.6,1.4,versicolor\n" +
> "5.8,2.6,4,1.2,versicolor\n" +
> "5,2.3,3.3,1,versicolor\n" +
> "5.6,2.7,4.2,1.3,versicolor\n" +
> "5.7,3,4.2,1.2,versicolor\n" +
> "5.7,2.9,4.2,1.3,versicolor\n" +
> "6.2,2.9,4.3,1.3,versicolor\n" +
> "5.1,2.5,3,1.1,versicolor\n" +
> "5.7,2.8,4.1,1.3,versicolor\n" +
> "6.3,3.3,6,2.5,virginica\n" +
> "5.8,2.7,5.1,1.9,virginica\n" +
> "7.1,3,5.9,2.1,virginica\n" +
> "6.3,2.9,5.6,1.8,virginica\n" +
> "6.5,3,5.8,2.2,virginica\n" +
> "7.6,3,6.6,2.1,virginica\n" +
> "4.9,2.5,4.5,1.7,virginica\n" +
> "7.3,2.9,6.3,1.8,virginica\n" +
> "6.7,2.5,5.8,1.8,virginica\n" +
> "7.2,3.6,6.1,2.5,virginica\n" +
> "6.5,3.2,5.1,2,virginica\n" +
> "6.4,2.7,5.3,1.9,virginica\n" +
> "6.8,3,5.5,2.1,virginica\n" +
> "5.7,2.5,5,2,virginica\n" +
> "5.8,2.8,5.1,2.4,virginica\n" +
> "6.4,3.2,5.3,2.3,virginica\n" +
> "6.5,3,5.5,1.8,virginica\n" +
> "7.7,3.8,6.7,2.2,virginica\n" +
> "7.7,2.6,6.9,2.3,virginica\n" +
> "6,2.2,5,1.5,virginica\n" +
> "6.9,3.2,5.7,2.3,virginica\n" +
> "5.6,2.8,4.9,2,virginica\n" +
> "7.7,2.8,6.7,2,virginica\n" +
> "6.3,2.7,4.9,1.8,virginica\n" +
> "6.7,3.3,5.7,2.1,virginica\n" +
> "7.2,3.2,6,1.8,virginica\n" +
> "6.2,2.8,4.8,1.8,virginica\n" +
> "6.1,3,4.9,1.8,virginica\n" +
> "6.4,2.8,5.6,2.1,virginica\n" +
> "7.2,3,5.8,1.6,virginica\n" +
> "7.4,2.8,6.1,1.9,virginica\n" +
> "7.9,3.8,6.4,2,virginica\n" +
> "6.4,2.8,5.6,2.2,virginica\n" +
> "6.3,2.8,5.1,1.5,virginica\n" +
> "6.1,2.6,5.6,1.4,virginica\n" +
> "7.7,3,6.1,2.3,virginica\n" +
> "6.3,3.4,5.6,2.4,virginica\n" +
> "6.4,3.1,5.5,1.8,virginica\n" +
> "6,3,4.8,1.8,virginica\n" +
> "6.9,3.1,5.4,2.1,virginica\n" +
> "6.7,3.1,5.6,2.4,virginica\n" +
> "6.9,3.1,5.1,2.3,virginica\n" +
> "5.8,2.7,5.1,1.9,virginica\n" +
> "6.8,3.2,5.9,2.3,virginica\n" +
> "6.7,3.3,5.7,2.5,virginica\n" +
> "6.7,3,5.2,2.3,virginica\n" +
> "6.3,2.5,5,1.9,virginica\n" +
> "6.5,3,5.2,2,virginica\n" +
> "6.2,3.4,5.4,2.3,virginica\n" +
> "5.9,3,5.1,1.8,virginica\n";
> 
> List tableRead = rConnection.eval(
> "read.csv(textConnection(\"" + inputIris + "\"), header = FALSE)").asList();  // works!
> 
> double[] d1 = ((REXPVector) ((RList) tableRead).get(0)).asDoubles();
> double[] d2 = ((REXPVector) ((RList) tableRead).get(1)).asDoubles();
> double[] d3 = ((REXPVector) ((RList) tableRead).get(2)).asDoubles();
> double[] d4 = ((REXPVector) ((RList) tableRead).get(3)).asDoubles();
> String[] d5 = ((REXPVector) ((RList) tableRead).get(4)).asStrings();
> 
> // create data frame with data.REXP myDf = REXP.createDataFrame(new RList(
> new REXP[]
> {
> new REXPDouble(d1),
> new REXPDouble(d2),
> new REXPDouble(d3),
> new REXPDouble(d4),
> new REXPString(d5)
> }));
> 
> // assign the data to a variable as was suggested.rConnection.assign("boxMVariable", myDf);
> 
> // create a string command with that variable name.String boxVariable = "boxM(boxMVariable [,-5], boxMVariable[,5]";
> 
> // try to execute the command...
> // FAILS with org.rosuda.REngine.Rserve.RserveException: eval failed, request status: R parser: input incomplete>>>> FAILS ! >>>>  REXP theBoxMResult = rConnection.eval(boxVariable);    <<<< FAILS <<<<<
> 
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