Python-openpyxlモジュールを使用してExcelシートにグラフをプロットする

Openpyxlは、読み取り、書き込み、算術演算、グラフのプロットなど、Excelファイルに対して複数の演算を実行できるPythonライブラリです。

例

# import openpyxl module
import openpyxl
#import BubbleChart,Reference,Series class from openpyxl.chart #sub_module
from openpyxl.chart import BubbleChart, Reference, Series
# Call a Workbook() function of openpyxl to create a new blank #Workbook object
wb = openpyxl.Workbook()
# Get workbook active sheetfrom the active attribute.
sheet = wb.active
rows = [
   ("Number of Products", "Sales in USD", "Market share"),
   (14, 12200, 15),
   (20, 60000, 33),
   (18, 24400, 10),
   (22, 32000, 42),
]
#write content of each row in 1st, 2nd and 3rd column of the active #sheet respectively.
for row in rows:
   sheet.append(row)
# Create object of BubbleChart class
chart = BubbleChart()
# create data for plotting
xvalues = Reference(sheet, min_col = 1, min_row = 2, max_row = 5)
yvalues = Reference(sheet, min_col = 2, min_row = 2, max_row = 5)
size = Reference(sheet, min_col = 3, min_row = 2, max_row = 5)
# create a 1st series of data
series = Series(values = yvalues, xvalues = xvalues, zvalues = size, title ="2013")
# add series data to the chart object
chart.series.append(series)
# set the title of the chart
chart.title = " BUBBLE-CHART "
# set the title of the x-axis
chart.x_axis.title = " X_AXIS "  
# set the title of the y-axis
chart.y_axis.title = " Y_AXIS "
# add chart to the sheet the top-left corner of a chart
# is anchored to cell E2
sheet.add_chart(chart, "E2")  
# save the file
wb.save("bubbleChart.xlsx")