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

棒グラフまたは棒グラフは、それらが表す値に比例する高さまたは長さの長方形の棒でカテゴリデータを表示するグラフまたはグラフです。バーは垂直または水平にプロットできます。縦棒グラフは縦棒グラフと呼ばれることもあります。

例

# import xlsxwriter module
import xlsxwriter
# Workbook() takes one, non-optional, argument which is the filename #that we want to create.
workbook = xlsxwriter.Workbook('chart_bar.xlsx')
# The workbook object is then used to add new worksheet via the #add_worksheet() method.
worksheet = workbook.add_worksheet()
# Create a new Format object to formats cells in worksheets using #add_format() method .
# here we create bold format object .
bold = workbook.add_format({'bold': 1})
# create a data list .
headings = ['Number', 'Batch 1', 'Batch 2']
data = [
   [2, 3, 4, 5, 6, 7],
   [80, 80, 100, 60, 50, 100],
   [60, 50, 60, 20, 10, 20],
]
# Write a row of data starting from 'A1' with bold format .
worksheet.write_row('A1', headings, bold)
# Write a column of data starting from 'A2', 'B2', 'C2' respectively worksheet.write_column('A2', data[0])
worksheet.write_column('B2', data[1])
worksheet.write_column('C2', data[2])
# Create a chart object that can be added to a worksheet using #add_chart() method.
# here we create a bar chart object .
chart1 = workbook.add_chart({'type': 'bar'})
# Add a data series to a chart using add_series method.
# Configure the first series.
# = Sheet1 !$A$1 is equivalent to ['Sheet1', 0, 0].
chart1.add_series({
   'name':       '= Sheet1 !$B$1',
   'categories': '= Sheet1 !$A$2:$A$7',
   'values':     '= Sheet1 !$B$2:$B$7',
})
# Configure a second series.Note use of alternative syntax to define #ranges.[sheetname, first_row, first_col, last_row, last_col].
chart1.add_series({
   'name':       ['Sheet1', 0, 2],
   'categories': ['Sheet1', 1, 0, 6, 0],
   'values':     ['Sheet1', 1, 2, 6, 2],
})
# Add a chart title
chart1.set_title ({'name': 'Results of data analysis'})
# Add x-axis label
chart1.set_x_axis({'name': 'Test number'})
# Add y-axis label
chart1.set_y_axis({'name': 'Data length (mm)'})
# Set an Excel chart style.
chart1.set_style(11)
#add chart to the worksheet the top-left corner of a chart
# is anchored to cell E2 .
worksheet.insert_chart('E2', chart1)
# Finally, close the Excel file via the close() method.
workbook.close()