code: public void setGraph(MeasureCollection[] measures, MeasureCollection[] stds, 
      		double[] variedParamValues, Color[] colors) {
          this.variedParamValues = variedParamValues;
          super.setGraph(measures, stds, colors);
      }
docs: Draws a scatter graph based on the varied parameter and the measures.
  @param measures list of measure collections, one for each task
  @param stds standard deviation values
  @param variedParamValues values of the varied parameter
  @param colors color encodings for the different tasks