Questions

Try these questions to test your knowledge on this chapter:

1. Consider the following descriptions of datasets. Suggest a style of chart for each:
   • Web server hit counts by date
   • Sales figures by salesperson per month
   • The percentage of support tickets for the past year by a company department
   • The yield of a plot of bean plants against the plant's height, for several hundred plants

2. Which chart component has not been configured in the following code, and what will the result be?

   data_list = [
       qtc.QPoint(2, 3),
       qtc.QPoint(4, 5),
       qtc.QPoint(6, 7)]
   chart = qtch.QChart()
   series = qtch.QLineSeries()
   series.append(data_list)
   view = qtch.QChartView()
   view.setChart(chart)
   view.show()

3. What's wrong with the following code?

   mainwindow = qtw.QMainWindow()
   chart = qtch.QChart()
   series = qtch.QPieSeries()
   series.append('Half...