Spire.XLS 图表系列教程：C# 在 Excel 中创建散点图表

素颜马尾好姑娘i 2022-02-01 03:47 430阅读 0赞

更多资源查看： [Spire.Doc系列教程][Spire.Doc] | [Spire.PDF系列教程][Spire.PDF]

【[**下载Spire.XLS最新试用版**][Spire.XLS]】

散点图是指在回归分析中，数据点在直角坐标系平面上的分布图，表示因变量随自变量而变化的大致趋势，常用于比较跨类别的聚合数据。下面的示例中，将演示通过[**Spire.XLS**][Spire.XLS 1]在Excel表格中创建散点图表的方法。

//实例化Workbook类的对象，并获取第一个工作表
     Workbook workbook = new Workbook();
     Worksheet sheet = workbook.Worksheets[0];
     //设置列宽,工作表名
     sheet.Range["A1:B1"].ColumnWidth = 15F;
     sheet.Name = "散点图";
    
     //创建散点图
     Chart chart = sheet.Charts.Add(ExcelChartType.ScatterMarkers);
     chart.DataRange = sheet.Range["B2:B10"];
     chart.SeriesDataFromRange = false;
     //指定散点图在sheet中的位置
     chart.LeftColumn = 4;
     chart.TopRow = 1;
     chart.RightColumn = 15;
     chart.BottomRow = 25;
    
     //添加图表标题
     chart.ChartTitle = "城市化与耕地面积变化散点图";
     chart.ChartTitleArea.IsBold = true;
     chart.ChartTitleArea.Size = 12;
     chart.PlotArea.ForeGroundColor = Color.Beige;
     //添加图表数据源
     sheet.Range["A1"].Value = "城市化水平";
     sheet.Range["A2"].Value = "10";
     sheet.Range["A3"].Value = "15";
     sheet.Range["A4"].Value = "17";
     sheet.Range["A5"].Value = "25";
     sheet.Range["A6"].Value = "35";
     sheet.Range["A7"].Value = "40";
     sheet.Range["A8"].Value = "38";
     sheet.Range["A10"].Value = "17";
     sheet.Range["A9"].Value = "24";
     sheet.Range["B1"].Value = "耕地面积";
     sheet.Range["B2"].Value = "26780";
     sheet.Range["B3"].Value = "24086";
     sheet.Range["B4"].Value = "20546";
     sheet.Range["B5"].Value = "15057";
     sheet.Range["B6"].Value = "11036";
     sheet.Range["B7"].Value = "12546";
     sheet.Range["B8"].Value = "9854";
     sheet.Range["B9"].Value = "13506";
     sheet.Range["B10"].Value = "18756";
    
     chart.Series[0].CategoryLabels = sheet.Range["B2:B10"];
     chart.Series[0].Values = sheet.Range["A2:A10"];
     sheet.Range["A1:B10"].Style.HorizontalAlignment = HorizontalAlignType.Center;
     sheet.Range["A1:B1"].Style.Font.IsBold = true;
    
     //添加趋势线
     IChartTrendLine trendLine = chart.Series[0].TrendLines.Add(TrendLineType.Exponential);
     trendLine.Name = "趋势线"; 
    
     //添加坐标轴名称
     chart.PrimaryValueAxis.Title = "城市化水平（%）";
     chart.PrimaryCategoryAxis.Title = "耕地面积（万hm^2）";
    
     //保存文档
     workbook.SaveToFile("result.xlsx", FileFormat.Version2013);

散点图效果：

![create-scatter-chart-in-excel][]

如果你有任何问题或意见，请在下方评论区留言~

[Spire.Doc]: https://blog.csdn.net/weixin_43746001/article/details/89632030
[Spire.PDF]: https://blog.csdn.net/weixin_43746001/article/details/89847245
[Spire.XLS]: https://www.evget.com/product/3371/download
[Spire.XLS 1]: https://www.evget.com/product/3371
[create-scatter-chart-in-excel]: /images/20220201/95dd93e90e4545779dac95b0d88e99b5.png