4.9 Exercises

1. Fill in the blanks

1. When matplotlib is loaded, a dictionary containing all configuration items will be assigned to variables for the convenience of developers.

Access the dictionary to set or get configuration items.

2. In data visualization, it is often used to encode categorical or ordinal properties of data.

3. Generally refers to dots or other symbols that represent individual data and are used to help users emphasize the location of data.

4. Text in matplotlib is an object of a class.

5. matplotlib can use functions to switch the theme style of charts.

2. Judgment questions

1. The default line type in matplotlib is long dashed line. ( )

2. Line charts in matplotlib do not display data markers by default. ( )

3