Add ability to display duplicate labels

I am submitting a…

• Feature request

charts version:

LineChart v0.86 from @carbon/charts-react

Issue description

Duplicate labels get ignored and end up showing multiple data points per label.

Steps to produce the issue

I have an array of objects with unique dateTimes for every 30 minutes of the day, which can span across several days. The data looks something like this:

I shorten/reformat each dateTime before adding to the labels array so that the labels are more readable. The labels array ends up looking something like this: labels: [‘12 AM’, ‘6 AM’, ‘12 PM’, ‘6 PM’, ‘12 AM’]

If I have multiple days coming back, then I will have multiple instances of each time of day, which leads to my graph looking something like this:

Expected behavior

I’d like to be able to have multiple duplicate labels that all have unique data. For example, the following graph allows for multiple instances of 6 AM, 6PM, etc.:

[theiliad]

I see, definitely a bug that we should fix ASAP.

I don’t think the time scales will be ready to use by end of Feb, but I’ll make sure this issue is fixed.

[theiliad]

This isn’t directly addressed by #275, however the underlying issue here was the time-series relationship of those labels, which is addressed in the PR.

In other words, using the refactored version you’ll be able to provide your date-value datasets and get a result similar to the screenshot @bkrissIBM posted above