Normalized Columns

import { Column } from 'cx/charts';

Normalized stacked column charts show proportions as percentages. Each stack totals to 100%, making it easy to compare relative contributions across categories.

Set normalized to true on the NumericAxis and use format="p;0" to display percentages.

 <div controller={PageController}>
  <Legend />
  <Svg style="height: 300px; border: 1px dashed #ddd">
    <Chart
      margin="20 20 40 50"
      axes={{
        x: <CategoryAxis />,
        y: <NumericAxis vertical normalized format="p;0" />,
      }}
    >
      <Rectangle fill="white" />
      <Gridlines />
      <Repeater records={m.data} recordAlias="$point">
        <Column
          name="Product A"
          colorIndex={0}
          x={m.$point.year}
          y={m.$point.v1}
          stacked
          tooltip={format(m.$point.v1, "n;0")}
          active={m.v1Active}
        />
        <Column
          name="Product B"
          colorIndex={5}
          x={m.$point.year}
          y={m.$point.v2}
          stacked
          tooltip={format(m.$point.v2, "n;0")}
          active={m.v2Active}
        />
        <Column
          name="Product C"
          colorIndex={10}
          x={m.$point.year}
          y={m.$point.v3}
          stacked
          tooltip={format(m.$point.v3, "n;0")}
          active={m.v3Active}
        />
      </Repeater>
    </Chart>
  </Svg>
</div> 
 class PageController extends Controller {
  onInit() {
    let v1 = 500,
      v2 = 500,
      v3 = 500;
    this.store.set(
      m.data,
      Array.from({ length: 10 }, (_, i) => ({
        year: 2015 + i,
        v1: (v1 = v1 + (Math.random() - 0.5) * 100),
        v2: (v2 = v2 + (Math.random() - 0.5) * 100),
        v3: (v3 = v3 + (Math.random() - 0.5) * 100),
      })),
    );
    this.store.set(m.v1Active, true);
    this.store.set(m.v2Active, true);
    this.store.set(m.v3Active, true);
  }
} 
 interface Point {
  year: number;
  v1: number;
  v2: number;
  v3: number;
}

interface Model {
  data: Point[];
  $point: Point;
  v1Active: boolean;
  v2Active: boolean;
  v3Active: boolean;
}

const m = createModel<Model>(); 
 import { Svg, Rectangle } from "cx/svg";
import {
  Chart,
  NumericAxis,
  CategoryAxis,
  Gridlines,
  Column,
  Legend,
} from "cx/charts";
import { createModel } from "cx/data";
import { Controller, Repeater, format } from "cx/ui";
import { enableTooltips } from "cx/widgets";
enableTooltips(); 

Product A

Product B

Product C

Configuration

Property	Type	Description
`normalized`	`boolean`	Set on `NumericAxis` to normalize stacked values to 100%.
`format`	`string`	Set to `"p;0"` on axis to display percentage labels.
`stacked`	`boolean`	Set on `Column` to enable stacking.