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## Description
Scatter chart example
## Code
```ruby
require 'axlsx'
p = Axlsx::Package.new
wb = p.workbook
wb.add_worksheet(name: 'Bar Chart') do |sheet|
sheet.add_row ['First', 1, 5, 7, 9]
sheet.add_row ['', 1, 25, 49, 81]
sheet.add_row ['Second', 5, 2, 14, 9]
sheet.add_row ['', 5, 10, 15, 20]
sheet.add_chart(Axlsx::ScatterChart, start_at: 'A6', end_at: 'F20') do |chart|
chart.add_series xData: sheet['B1:E1'], yData: sheet['B2:E2'], title: sheet['A1']
chart.add_series xData: sheet['B3:E3'], yData: sheet['B4:E4'], title: sheet['A3']
end
end
p.serialize 'scatter_chart_example.xlsx'
```
## Output
|
