Expressions(表达式)¶
In addition to visual tools like the histogram and chart, Contour also offers an expression board that lets you work with Contour’s rich expression language to derive new columns from your data, perform complex filtering, or perform complex aggregations. Contour's expression language incorporates a number of functions from SparkSQL.
To learn more:
- Learn the basics of how to use the expression board.
- Read the reference for expressions syntax.
- Learn about advanced features like window functions.
中文翻译¶
表达式¶
除了直方图和图表等可视化工具外,Contour 还提供了表达式面板(expression board),让您能够使用 Contour 丰富的表达式语言(expression language)从数据中派生新列、执行复杂过滤或进行复杂聚合。Contour 的表达式语言集成了 SparkSQL 中的大量函数。
了解更多:
- 学习使用表达式面板的基础知识。
- 阅读表达式语法的参考文档。
- 了解窗口函数(window functions)等高级功能。