Trendline.Period

Trendline.Period property

Returns or sets the period for the moving-average trendline.

public int Period { get; set; }

Remarks

This value should be between 2 and 255. And it must be less than the number of the chart points in the series

Examples

using System;
using Aspose.Cells;
using Aspose.Cells.Charts;

namespace AsposeCellsExamples
{
    public class TrendlinePropertyPeriodDemo
    {
        public static void Run()
        {
            // Create a new workbook
            Workbook workbook = new Workbook();
            Worksheet worksheet = workbook.Worksheets[0];

            // Add sample data
            worksheet.Cells["A1"].PutValue("X");
            worksheet.Cells["B1"].PutValue("Y");
            for (int i = 2; i <= 10; i++)
            {
                worksheet.Cells["A" + i].PutValue(i);
                worksheet.Cells["B" + i].PutValue(i * 2);
            }

            // Add a chart
            int chartIndex = worksheet.Charts.Add(ChartType.Line, 5, 0, 20, 8);
            Chart chart = worksheet.Charts[chartIndex];

            // Add series
            chart.NSeries.Add("B2:B10", true);
            chart.NSeries.CategoryData = "A2:A10";

            // Add a moving average trendline
            int trendlineIndex = chart.NSeries[0].TrendLines.Add(TrendlineType.MovingAverage);
            Trendline trendline = chart.NSeries[0].TrendLines[trendlineIndex];
            trendline.Period = 3; // Set period for moving average
            trendline.Name = "3-Period Moving Average";

            // Save the workbook
            workbook.Save("TrendlinePeriodDemo.xlsx");
        }
    }
}

See Also