By Lenin Mishra
A Bubble chart is similar a Scatter chart except, the data points are replaced with bubbles and an additional dimension of the data is represented in the size of the bubbles.
Consider the data shown in the below image.
Let’s plot the
Total Cost per product with
cost per unit as the size of the Bubble.
import openpyxl from openpyxl.chart import Reference, BubbleChart, Series wb = openpyxl.load_workbook('wb1.xlsx') sheet = wb.active # Data for plotting # Choose the product column xvalues = Reference(sheet, min_col=2, max_col=2, min_row=2, max_row=11) # Choose the Total Cost Column yvalues = Reference(sheet, min_col=5, max_col=5, min_row=2, max_row=11) # Choose the Cost per Unit column size = Reference(sheet, min_col=3, max_col=3, min_row=2, max_row=11) # Create object of BubbleChart class chart = BubbleChart() series = Series(values=yvalues, xvalues=xvalues, zvalues=size) chart.series.append(series) # set the title of the chart chart.title = "Cost Analysis of Products" chart.style = 18 # use a preset style # set the title of the x-axis chart.x_axis.title = "Products" # set the title of the y-axis chart.y_axis.title = "Total Cost Per Product" # the top-left corner of the chart # is anchored to cell F2 . sheet.add_chart(chart,"F2") # save the file wb.save("wb1.xlsx")
Since the type of x and y axis is declared
NumericType in the
BubbleChart class, you cannot set the product name (or any Text based label) for any axis.