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/

Start in src/Plotly.NET/ChartAPI/Chart2D.fs by reading the existing Range chart and Chart.Bar implementations. Prototype in a scripting or notebook environment, using line charts connected from zero to each data point. Done means a top-level lollipop chart API with data input supporting #IConvertible, following the library's existing chart patterns.