Error bar series in x- and y-direction

[Crown0815]

Is your feature request related to a problem? Please describe.
We would like to utilize LiveCharts2 for a Scientific Plotting library. For scientific data, error bars are necessary to scrutinize the quality and meaningfulness of the data.

Describe the solution you'd like
It would be great to be able to add absolute errors as error bars to a plot. This type of requirement is typically implemented through a separate series that is laid below (or over) an existing line, scatter, or bar series. Here is an example from Scottplot.

Describe alternatives you've considered
A different library.

Additional context

• Wikipedia - Error Bars
• Data Visualization Catalog - Error Bars

[beto-rodriguez]

This is now supported in beta.920 #1179:

https://github.com/beto-rodriguez/LiveCharts2/blob/master/samples/ViewModelsSamples/Error/Basic/ViewModel.cs