饼图不包括所有数据

Question

我在官方文档中使用 this example 创建了饼图。这是我的代码

1  pie = PieChart() 
2  labels = Reference(sheet, min_col=2, min_row=1, max_row=5)
3  data = Reference(sheet, min_col=3, min_row=1, max_row=5)
4  pie.add_data(data, titles_from_data=True)
5  pie.set_categories(labels)
6  pie.title = "What did you like best about SKY Schools?"
7  sheet.add_chart(pie, "E1")

这是Excel和饼图

中的数据

饼图未选择最后一个数据点：“金钥匙”。我阅读了 Reference 对象的文档，但无法理解导致问题的原因。在第 2 行和第 3 行中，我将 max_rows 值调整了 1，但没有解决。

任何help/ideas？

Answer 1

titles_from_data=True用于指定第一项数据（单元格C1）为标题。

但是看你的截图，没有标题。因此，您可以将其设置为 false 或根本不设置该参数。

给re-create你的截图：

from openpyxl import Workbook

from openpyxl.chart import (
    PieChart,
    ProjectedPieChart,
    Reference
)
from openpyxl.chart.series import DataPoint

data = [ 
    ['What did you like best about SKY Schools?', 'Games', 48],
    ['What did you like best about SKY Schools?', 'All of it', 36],
    ['What did you like best about SKY Schools?', 'Breathing', 25],
    ['What did you like best about SKY Schools?', 'Yoda', 23],
    ['What did you like best about SKY Schools?', 'The Golden Keys', 16]
]

wb = Workbook()
ws = wb.active

for row in data:
    ws.append(row)

ws.merge_cells('A1:A5')

pie = PieChart()
labels = Reference(ws, min_col=2, min_row=1, max_row=5)
data = Reference(ws, min_col=3, min_row=1, max_row=5)
pie.add_data(data)
pie.set_categories(labels)
pie.title = ws.cell(1, 1).value
ws.add_chart(pie, "E1")
wb.save("results.xlsx")

饼图不包括所有数据

Pie chart not including all data

python

charts

openpyxl