chart.js의 yAxes

              yAxes: [{
                  ticks: {
                    callback: function(value) { return value + " oct";},
                    min: 0
                  }
              }]

              yAxes: [{
                  ticks: {
                    callback: function(value) { if (value == 0) { return value +
 " oct";} else if (value >= 1000000) { return (value / 1000000) + " moct";} else
{return (value / 1000) + " koct";}},
                    min: 0
                  }
              }]