BUG: Conditional box plot

Dear KNIMErs,

the Conditional Box Plot in KNIME 4.2 (Win 10 64 bit SDK nightly) gives me an incorrect sort order on string-numeric category labels, see below:

A fix would be greatly appreciated. Many thanks! :slight_smile:

Regards,
E

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Yes, it would indeed be nice if there is some way in which we could control the order of the categories; sometimes I want to have a box plot of categories that can be divided into distinct groups; in such a situation I would like the categories belonging to a certain group to appear next to each other in the box plot.

Consider a boxplot comparing the weights of corvids and various birds of prey; afaik Knime does not offer a way to make the boxes appear in a sensible grouping, such as:
Crow - jackdaw - raven - hawk - buzzard - eagle

Last time I was in this situation I was forced to move the boxes around in Gimp after producing the box plot with Knime.

Best regards,
Aswin

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Well, I tried my best with the “0” prefix already, alphabetic order should’ve done the trick in this case - but the feature seems bugged in this node. :-/

And while I agree that hierarchical groups and custom sorting rules would be even better to have, I am also slightly wary of having too many reporting-type features in KNIME’s core. If I did it for a publication I’d probably go the ggplot route via R, and for exploration I’d just continue to generate alphabetically ordered prefixes.

Cheers,
E

Dear Ergonomist,

seems like there is something wrong with the sorting of the node. I agree that custom sorting would probably make sense. I have opened a ticket and will write here once its finished.

Cheers,
Daniel

5 Likes

Great, thanks! :slight_smile:

-E

Has this been fixed yet? I really need to rearrange this

Hi there @lckrogh,

welcome to KNIME Community!

Not sure fix would help you. What you can try is following transformation from string to number:
Apr 18 --> 1804
Maj18 --> 1805

Anyways will add +1 on ticket (internal reference: AP-13814) to better handle order of categories if possible.

Br,
Ivan

Just a quick heads up on this topic. You can find an example for a grouped box plot using the Generic JavaScript View node in https://kni.me/w/jVhS7wh9sLSJIEHh. You have to make sure that your data is exactly in the required form (first column = group, one column for each subgroup), though.

Best,
Stefan

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Hello there!

Issue reported here is addressed with KNIME version 4.2.3. (AP-13814)
Changelog here:

Br,
Ivan

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