openpyxl3.0官方文档（12）—— 散点图

散点图或xy图类似于一些折线图。主要的区别是，一系列值与另一系列值相对应。这在值无序的情况下很有用。

    from openpyxl import Workbook
    from openpyxl.chart import (
        ScatterChart,
        Reference,
        Series,
    )
    
    wb = Workbook()
    ws = wb.active
    
    rows = [
        ['Size', 'Batch 1', 'Batch 2'],
        [2, 40, 30],
        [3, 40, 25],
        [4, 50, 30],
        [5, 30, 25],
        [6, 25, 35],
        [7, 20, 40],
    ]
    
    for row in rows:
        ws.append(row)
    
    chart = ScatterChart()
    chart.title = "Scatter Chart"
    chart.style = 13
    chart.x_axis.title = 'Size'
    chart.y_axis.title = 'Percentage'
    
    xvalues = Reference(ws, min_col=1, min_row=2, max_row=7)
    for i in range(2, 4):
        values = Reference(ws, min_col=i, min_row=1, max_row=7)
        series = Series(values, xvalues, title_from_data=True)
        chart.series.append(series)
    
    ws.add_chart(chart, "A10")
    
    wb.save("scatter.xlsx")
    

规范中指出，散点图有以下类型：“线条”、“线条标记”、“标记”、“平滑”、“平滑标记”。但是，至少在Microsoft Excel中，这只是其他设置的快捷方式。为了与折线图保持一致，应手动设置每个系列的样式。