title: EXTJS chart with fixed numeric axis
body: <p>Can someone help me? I can use extjs to make a chart but now i don't know how to do like i want. So, i build a scatter chart and want to use fixed numeric x and y axis, from 0 to 5, the chart i had now just automatically decide the range value of my numeric axis based by the value from my store, i don't want that.</p>
  
  <pre><code>Ext.create('Ext.chart.Chart', {
  renderTo: myChart,
  width: 500,
  height: 300,
  animate: true,
  theme:'Category1',
  store: store,
  axes: [{
      type: 'Numeric',
      position: 'left',
      title: 'Kepentingan',
      grid: true,
      minimum: 0
  }, {
      type: 'Numeric',
      position: 'bottom',
      title: 'Kinerja',
      grid: true,
      minimum: 0
  }],
  series: [ {
      type: 'scatter',
      markerConfig: {
          radius: 5,
          size: 5
      },
      axis: 'left',
      xField: 'data2',
      yField: 'data3'
  }]
  });
  </code></pre>
  
  <p>What should i change in the axes part of my chart? Please help. Thank you in advanced for help.</p>