Pareto Chart

DsExcel supports Pareto chart, also known as Pareto distribution diagram. It is a vertical bar graph in which values are plotted left to right, in decreasing order of relative frequency. Pareto charts are useful for task prioritizing. The chart gives a hint about the variables that have the greatest effect on a given system.

Pareto chart can be used to highlight the most important factor from a given set of factors. For example, quality control, inventory control, and customer grievance handling are some areas where Pareto chart analysis can be used.

Using code

Refer the following code to add Pareto chart:

private static void ParetoChart() {
    // Initialize workbook
    Workbook workbook = new Workbook();
    // Fetch default worksheet
    IWorksheet worksheet = workbook.getWorksheets().get(0);

    // Prepare data for chart
    worksheet.getRange("A1:B11")
            .setValue(new Object[][] { 
                { "Complaint", "Count" }, 
                { "Too noisy", 27 }, 
                { "Overpriced", 789 },
                { "Food is tasteless", 65 }, 
                { "Food is not fresh", 19 }, 
                { "Food is too salty", 15 },
                { "Not clean", 30 }, 
                { "Unfriendly staff", 12 }, 
                { "Wait time", 109 }, 
                { "No atmosphere", 45 },
                { "Small portions", 621 } });
    worksheet.getRange("A:B").getColumns().autoFit();
    // Add Pareto Chart
    IShape paretochartShape = worksheet.getShapes().addChart(ChartType.Pareto, 300, 30, 300, 250);

    // Set range"A1:B11" as the pareto chart series
    paretochartShape.getChart().getSeriesCollection().add(worksheet.getRange("A1:B11"));

    // Configure Chart Title
    paretochartShape.getChart().getChartTitle().setText("Pareto Chart");

    // Saving workbook to Xlsx
    workbook.save("31-ParetoChart.xlsx", SaveFileFormat.Xlsx);

Using code