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React Charts - Pareto Chart
In this demo, the DevExtreme Chart component is used to create a Pareto chart. This example of a Pareto chart summarizes complaints about the service provided by a pizza shop. From this chart, the pizza shop owner may infer that to satisfy most of the customers, he or she needs to eliminate two most frequently encountered issues: delayed delivery and cold pizza.
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Backend API
x
import React from 'react';
import Chart, {
ArgumentAxis,
CommonSeriesSettings,
Legend,
Series,
Tooltip,
ValueAxis,
ConstantLine,
Label,
} from 'devextreme-react/chart';
import { complaintsData } from './data.ts';
const data = complaintsData.sort((a, b) => b.count - a.count);
const totalCount = data.reduce((prevValue, item) => prevValue + item.count, 0);
let cumulativeCount = 0;
const dataArray = data.map((item) => {
cumulativeCount += item.count;
return {
complaint: item.complaint,
count: item.count,
cumulativePercentage: Math.round((cumulativeCount * 100) / totalCount),
};
});
function customizeTooltip(pointInfo) {
return {
html: `<div><div class="tooltip-header">${
pointInfo.argumentText
}</div><div class="tooltip-body"><div class="series-name"><span class='top-series-name'>${
pointInfo.points[0].seriesName
}</span>: </div><div class="value-text"><span class='top-series-value'>${
pointInfo.points[0].valueText
}</span></div><div class="series-name"><span class='bottom-series-name'>${
pointInfo.points[1].seriesName
}</span>: </div><div class="value-text"><span class='bottom-series-value'>${
pointInfo.points[1].valueText
}</span>% </div></div></div>`,
};
}
function customizePercentageText({ valueText }) {
return `${valueText}%`;
}
function App() {
return (
<Chart
title="Pizza Shop Complaints"
dataSource={dataArray}
palette="Harmony Light"
id="chart"
>
<CommonSeriesSettings argumentField="complaint" />
<Series
name="Complaint frequency"
valueField="count"
axis="frequency"
type="bar"
color="#fac29a"
/>
<Series
name="Cumulative percentage"
valueField="cumulativePercentage"
axis="percentage"
type="spline"
color="#6b71c3"
/>
<ArgumentAxis>
<Label overlappingBehavior="stagger" />
</ArgumentAxis>
<ValueAxis
name="frequency"
position="left"
tickInterval={300}
/>
<ValueAxis
name="percentage"
position="right"
tickInterval={20}
showZero={true}
valueMarginsEnabled={false}
>
<Label customizeText={customizePercentageText} />
<ConstantLine
value={80}
width={2}
color="#fc3535"
dashStyle="dash"
>
<Label visible={false} />
</ConstantLine>
</ValueAxis>
<Tooltip
enabled={true}
shared={true}
customizeTooltip={customizeTooltip}
/>
<Legend
verticalAlignment="top"
horizontalAlignment="center"
/>
</Chart>
);
}
export default App;
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