How to retrieve interactively selected data from new KNIME Views?

KNIME Analytics Platform
1

Basically, I want the functionality that DanielBog showcased with the Table View (JavaScript) and Scatter Plot (JavaScript) nodes in his example workflow here:
trying to get scatter plot to be interactive with table view but with the Table View and Scatter Plot nodes from the new KNIME Views extension. Is that possible (or planned)?

Cheers, Matt

2

Hey there,

I tried this out and here is what I found out:

  • you can set up the table view to show “selected rows only”
  • When you then select points in the Scatter Plot, it only shows those rows

It also seems to work the other way around - however it seems that the scatter default is that no row is selected so the table shows empty to start with.

Once you then select points in your scatter plot you can then unselect them in the table, which also removes the selection in the scatter plot.

I have created a minimal example on top of the workflow you linked - it is easiest do use the box select option (red box):

image
image1908×631 121 KB

In the workflow it is the bottom component:

image

Here is the workflow:

InteractionWorkflow_md.knwf (92.7 KB)

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3

Hi Martin,

thanks for the reply. However, I might have been not clear enough in what I want to achieve. I want to retrieve the rows that I interactively selected in the scatterplot so that I can continue working with those. This works fine with the JavaScript nodes but I like the new KNIME Views and wondered whether I can do the same thing with them.

I modified your example workflow (well, really the original component by Daniel) to make it more clear.

Component content:

Component content
Component content1089×477 19.5 KB

Component view:

Component view
Component view2071×702 103 KB

Component output:

Component output
Component output1482×536 35.7 KB

Here’s the workflow: InteractionWorkflow1.knwf (90.8 KB)

1 Like
4

Ok got it - given that neither Scatter Plot nor Table View from Views extension have output ports, I’m afraid it doesn’t work with that combination of nodes.

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5

Yeah, that’s what I thought. Any idea whether there are plans to add output ports to the new View nodes?

6

I‘m afraid I don’t have visibility of what’s on the roadmap, but how about you make a feature request im the Feedback & Ideas section to bring it to the Devs attention. Also other community members can then vote for it.

2 Likes