text: var fs = require('fs');
  
  eval(fs.readFileSync('pbPlots.js')+'');
  eval(fs.readFileSync('supportLib.js')+'');
  
  var imageReference = CreateRGBABitmapImageReference();
  
  var xs = [-2, -1, 0, 1, 2];
  var ys = [2, -1, -2, -1, 2];
  
  var errorMessage = {};
  var success = DrawScatterPlot(imageReference, 800, 600, xs, ys, errorMessage);
  
  if(success){
      var pngdata = ConvertToPNG(imageReference.image);
      WriteToFile(pngdata, "example1.png");
      DeleteImage(imageReference.image);
  }else{
      console.error(errorMessage.string.join(''));
  }
  