code: function populateLabels(labelTemplateString, labels, numberOfSteps, graphMin, stepValue) {
          if (labelTemplateString) {
              //Fix floating point errors by setting to fixed the on the same decimal as the stepValue.
              for (var i = 1; i < numberOfSteps + 1; i++) {
                  labels.push(tmpl(labelTemplateString, {value: (graphMin + (stepValue * i)).toFixed(getDecimalPlaces(stepValue))}));
              }
          }
      }
docs: Populate an array of all the labels by interpolating the string.