Material preparation: computer, network.

Operating steps:

1. Enter the required data in the excel table, as shown in the figure, indicating the evaluation effect of different models in different years.

2. Select a column/row of data, and then select Insert Chart.

3, all kinds of charts can choose what they need, and can be adjusted later.

4. After selecting the chart type, you can find that a chart pops up, as shown below. Next to the chart, there is an option to call up the chart title, axis title, legend, etc. required by the table.

5. The next step is to add data.

6. As shown in the figure, add data on the left, and then set the horizontal axis attribute. The dot+sign is shown below. At this point, you can add a row/column of data. Click the edit button at the far right of the category and select the attribute of the independent variable.

7. After all the data is added, the data label can be improved.

8. Finally, you can get the final chart!