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Python XlsxWriter - Bar Chart
  • 时间:2024-09-17

Python XlsxWriter - Bar Chart


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The bar chart is similar to a column chart, except for the fact that the data is represented in proportionate horizontal bars instead of vertical columns. To produce a bar chart, the type argument of add_chart() method must be set to bar .


chart1 = workbook.add_chart({ type :  bar })

The bar chart appears as follows −

Bar Chart1

There are two subtypes of bar chart, namely stacked and percent_stacked. In the stacked chart, the bars of different colors for a certain category are placed one after the other. In a percent_stacked chart, the length of each bar shows its percentage in the total value in each category.


chart1 = workbook.add_chart({
    type :  bar ,
    subtype :  percent_stacked 
})

Example

Program to generate percent stacked bar chart is given below −


import xlsxwriter

wb = xlsxwriter.Workbook( hello.xlsx )
worksheet = wb.add_worksheet()
chart1 = wb.add_chart({ type :  bar ,  subtype :  percent_stacked })

# Add the worksheet data that the charts will refer to.
headings = [ Name ,  Phy ,  Maths ]
data = [
   ["Jay", 30, 60],
   ["Mohan", 40, 50],
   ["Veeru", 60, 70],
]

worksheet.write_row(0,0, headings)
worksheet.write_row(1,0, data[0])
worksheet.write_row(2,0, data[1])
worksheet.write_row(3,0, data[2])

chart1.add_series({
    name :  =Sheet1!$B$1 ,
    categories :  =Sheet1!$A$2:$A$4 ,
    values :  =Sheet1!$B$2:$B$4 ,
})

chart1.add_series({
    name : [ Sheet1 , 0, 2],
    categories : [ Sheet1 , 1, 0, 3, 0],
    values : [ Sheet1 , 1, 2, 3, 2],
})
chart1.set_title ({ name :  Markpst ,  name_font :
   { name : Times New Roman ,  size :24}})

chart1.set_x_axis({ name :  Students ,  name_font :
   { name : Arial ,  size :16,  bold :True}, })

chart1.set_y_axis({ name :  Marks , name_font :
   { name : Arial ,  size :16,  bold :True},
    num_font :{ name : Arial ,  itapc :True}})

chart1.set_legend({ position : bottom ,  font :
   { name : capbri , size : 9,  bold : True}})

worksheet.insert_chart( B7 , chart1)

wb.close()

Output

The output file will look pke the one given below −

Bar Chart2 Advertisements