Lollipop chart

Description

A Lollipop chart is a categorical chart that is basically a bar chart replaced by points being connected by a line to the zero-line of the reference axis representing the data. It can be helpful to reduce visual noise when all values have a similar height [1].

Example:

Pointers

• Ideally, you start prototyping in a scripting or notebook environment where you can iterate fast. installation instructions can be found here: https://plotly.net/#Installation
• Charts like this that are using baseline trace types to create a new chart type should only be implemented in the top-level Chart API. An example where this is already done is the Range chart that combines a set of differently styled line charts.
• When possible, use #IConvertible for data input, as this allows for strings, number types such as int and float, and DateTime.

References

• [1] https://datavizproject.com/data-type/lollipop-chart/

从 src/Plotly.NET/ChartAPI/Chart2D.fs 开始，阅读现有的 Range chart 和 Chart.Bar 实现。在脚本或 notebook 环境中制作原型，使用从零连接到每个数据点的折线图。完成的标准是提供一个顶层 lollipop chart API，其数据输入支持 #IConvertible，并遵循库中现有的图表模式。