new frappe.Chart("#chart", {
  // or DOM element
    //"23", "00", "01", "02", "03", "04", "05", "06"
    //136.03, 80.07, 90.14, 85.15, 78.9, 92.96, 100.37, 145.35
  data: {
    labels: ["11","12","13","14","15","16","17","18","19","20","21","22","23","00"],
    datasets: [
      { values: [2.55,0.10,-1.46,-1.69,-2.18,-0.88,1.66,29.10,50.86,100.22,110.93,128.97,85.44,72.61] }
    ],

    yMarkers: [{ label: "universaalteenuse hind 154", value: 154, options: { labelPos: "left" } }],
    yRegions: [
      { label: "50", start: 0, end: 50, options: { labelPos: "right" } }
    ]
  },

  title: "Elektrihinnad",
  type: "line",
  height: 300,
  colors: ["blue"],
  lineOptions: {
    dotSize: 8
  },

  tooltipOptions: {
    formatTooltipX: (d) => "kell " + d +".00-"+ (+d+1) +".00",
    formatTooltipY: (d) => d + " €/MWh"
  }
});