This is a 2d plotting library for data visualization, and is used in some of the book's code samples that produce line graphs and bar charts.

这是一个用于数据可视化的2d绘图库，本书在一些程序例子中用到该库用于产生曲线图和柱状图。

youdao

This is a 2d plotting library for data visualization, and is used in some of the book's code samples that produce line graphs and bar charts.

这是一个用于数据可视化的2d绘图库，本书在一些程序例子中用到该库用于产生曲线图和柱状图。

youdao