Interactivity in Generic ECharts

[d3n1s]

Hi Knimers,

is it possible to filter EChart 2 by selecting some data points in Echart 1 in a component?
E.g. select some points in a scatter plot and see the distribution of those data points in a box plot nearby.

I did not find much documentation about echarts.

Thanks a lot in advance,
Denis

[gonhaddock]

Hello @d3n1s
We had some brainstorm in the past about this topic of interactive charts within KNIME. The closest workflow -to what you can consider Interactive- I’ve seen, uses a ‘Scater Plot (Plotly)’ node for the selection. Required some chart reselect and a refresh button to update the chart view component. The author of this amazing workflow is @alessandro_mac .

This is a good post to start with:

Coloring data points in Scatter Plot (Plotly) based on selection

Hi @ScottF, thank you very much for your reply! I’ve play around a bit and I’ve come up with two different solutions that work as a workaround to my problem. The first one, called selectionPlot_V01, has the advantage of selecting the points inside the scatterplot just using a Multiple Selection Widget automatically re-executed as soon the list has changed (thanks to @gonhaddock for the suggestion of using the twinlist). The most important thing, in my case, would be to show all the points at …

The target chart view is highlighting the selection by color and size, in a standard ‘Scatter Plot’ node. I guess you can combine some other chart type like box plots (?)

Sadly, I didn’t had time to research forward about this subject. I didn’t have chance to play around with ECharts either; But thoughtfully, and based on rules governing over KNIME; I don’t see a better option to achieve a certain degree of chart interactivity.

Let’s listen updated ideas upon chart interactivity from forum colleagues!

BR