Problems with heatmap view

KNIME Analytics Platform
1

Hi all,
I am trying to visualize a dataset with a JS-Heatmap (/Views/JavaScript/Heatmap, using Knime AP v4.5.2). The dataset has a size of 65 rows x 167 columns. I tried different settings, but I can’t get the view to display the entire dataset. The view of the heatmap is truncated at the ~68th column and I need to pan the map in order to see the other columns.
Is there any way to adjust the settings in a way, that the heatmap for the entire dataset is shown at once (ideally also in a shared component, in which I want to embed the heatmap-node)?

image
image915×632 70.2 KB

Any help would be more than welcome!

Best regards,
Stephan

2

Hi @StephanL,

I am not aware of any limitation in terms of rows and columns displayed, however why don’t you consider to group them? Is there any specific reason?

If no, consider using this node

Have a nice day,
RB

3

Hi lelloba, thanks for the suggestion. But in this case, the dataset should be displayed as is (what I’ve shown in the screenshot are just dummy values, the actual look more “meaningful”), so grouping them is unfortunately not an option.

Regards,
Stephan

5

Sorry for the late reply. I think I badly understood your problem at first.

However, if you use this other node you should be able to see all columns and rows:

immagine
immagine1920×1028 383 KB

(170 columns, 70 rows test dataset plot)

Have a nice evening,
RB

6

Turns out, I forgot to mention that using the heatmap interactively (i.e. with the ability to select rows) is important in this case. While the JFreeChart node is able to show the entire dataset, it seems that it lacks this capability. Anyways, thanks for taking the time to dig into this!

Best regards,
Stephan

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7

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