Pareto Chart

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Current behavior Not able to create a Pareto Chart. I have tried to create this by using a line chart stacked on top of a bar chart but I don’t see a way to move the Y axis labels to the right side of the line chart to create a makeshift combination chart.

Expected behavior Ability to create a Pareto chart or other combination charts. I’m not sure if it is best to create a stand alone Pareto chart component or stack a line chart on top of a bar chart and have an Input to move the Y axis to right side of the chart. I lean towards the Input method to allow flexibility for creating other types of combination charts but there are some UX considerations like tooltips on hover and perhaps scaling issues that might be problematic. Any suggestions?

Example:

What is the motivation / use case for changing the behavior? Ability to add a Pareto chart or other combination charts.

Please tell us about your environment: Mac OS 10.12.2, using https://github.com/Teradata/covalent

• ngx-charts version: 5.0.0

• Angular version: 4.0.0

[JoshSchoen]

@marjan-georgiev Great! I am committed to help with testing and upgrading any components as well so please reach out when that comes up. I see using this libraries for a lot of different projects. Knowing we are able extend the features in this way is awesome and I plan to help build that out where possible!

I will add the PR in the next few days after I refactor some code to fit this demo scenario.

Appreciate your time and all the work you have done.

[marjan-georgiev]

Absolutely, please make any changes to the standard components you think are necessary to accomplish this.

To answer your questions:

1. We will be making sure that all demos are updated as we make changes to the framework. As for custom charts built in other applications, ngx-charts follows semantic versioning, so any breaking change that we introduce will be released in a major version of the library.
2. We don’t have many unit tests at the moment, but we do manually go through all charts in the demo page to make sure nothing is broken before we release.

Thanks, and looking forward to the PR!