y axis labelling

src/components/ChartView.vue

@@ -66,7 +66,16 @@ export default {
               if (typeof y.max_value === 'number')
                 range.suggestedMax = y.max_value;
 
-              return { id: index, ticks: range };
+              return {
+                id:         index,
+                ticks:      range,
+                scaleLabel: {
+                  labelString: y.label,
+                  display:     true,
+                  lineHeight:  1,
+                  padding:     0.1
+                }
+              };
             }
           )
         }