code: function drawLine(values, style, minY) {
      style = style || {}
      var color = self.options.style.line
      c.strokeStyle = style.line || color
  
      c.moveTo(0, 0)
      c.beginPath();
      c.lineTo(getXPixel(0), getYPixel(values[0], minY));
  
      for(var k = 1; k < values.length; k++) {
        c.lineTo(getXPixel(k), getYPixel(values[k], minY));
      }
  
      c.stroke();
    }
docs: Draw the line graph