3 ms·

What a neat way of thinking about (dimension a, dimension b, value) tuples. Does anyone know of any library to visualise data this way?

Etheryte 6y ago
This is often referred to as a bubble chart, and most common graphing libraries support it. An alternative would be a scatter plot with three variables where the third variable, value in your case, is coded by color.
itronitron 6y ago
d3.js and Observable are a good place to start, you may need to provide your own sorting/ordering algorithm [edit] and you can also now easily do this in MS Excel
- isoprophlex 6y ago
  Thanks, I was imprecise, visualizing I can do. It's the sorting algo I was curious about
  - itronitron 6y ago
    Nearest neighbor ordering algorithms (hierarchical clustering, dendrograms) are well suited for sorting the items in either or both axes. If either axis relates directly to a physical dimension then it might be best to maintain that order in the matrix. A lot of the fun is in working out how to measure distance between items based on their values as that drives the results of the nearest neighbor order.
jamessb 6y ago
The authors created Bertifier (project page [1], demo [2], paper [3]); the paper has comparisons to other tools. There was a paper at IEEE VIS last year ("Guiro: User-Guided Matrix Reordering" [4]) about a tool that implemented > 70 matrix seriation/reordering methods, but I don't think the code is available. There was also a State of the Art Review on matrix re-ordering methods from 2016 [5, 6]: it is mostly about the algorithms rather than available implementations, but it mentions reorder.js [7]. [1]: https://aviz.fr/bertifier https://aviz.fr/bertifier [2]: https://aviz.fr/bertifier_app/ https://aviz.fr/bertifier_app/ [3]: https://aviz.fr/wiki/uploads/Bertifier/bertifier-authorversion.pdf https://aviz.fr/wiki/uploads/Bertifier/bertifier-authorversi... [4]: https://vcg.seas.harvard.edu/publications/guiro-user-guided-matrix-reordering https://vcg.seas.harvard.edu/publications/guiro-user-guided-... [5]: https://onlinelibrary.wiley.com/doi/full/10.1111/cgf.12935 https://onlinelibrary.wiley.com/doi/full/10.1111/cgf.12935 [6]: https://bib.dbvis.de/uploadedFiles/MatrixReorderingSTAR.pdf https://bib.dbvis.de/uploadedFiles/MatrixReorderingSTAR.pdf [7]: https://github.com/jdfekete/reorder.js https://github.com/jdfekete/reorder.js
- isoprophlex 6y ago
  O wow, what a fantastic reply. Thanks a lot for all those delicious links!

Etheryte 6y ago

This is often referred to as a bubble chart, and most common graphing libraries support it. An alternative would be a scatter plot with three variables where the third variable, value in your case, is coded by color.

itronitron 6y ago

d3.js and Observable are a good place to start, you may need to provide your own sorting/ordering algorithm [edit] and you can also now easily do this in MS Excel

isoprophlex 6y ago
Thanks, I was imprecise, visualizing I can do. It's the sorting algo I was curious about
- itronitron 6y ago
  Nearest neighbor ordering algorithms (hierarchical clustering, dendrograms) are well suited for sorting the items in either or both axes. If either axis relates directly to a physical dimension then it might be best to maintain that order in the matrix. A lot of the fun is in working out how to measure distance between items based on their values as that drives the results of the nearest neighbor order.

jamessb 6y ago

The authors created Bertifier (project page [1], demo [2], paper [3]); the paper has comparisons to other tools. There was a paper at IEEE VIS last year ("Guiro: User-Guided Matrix Reordering" [4]) about a tool that implemented > 70 matrix seriation/reordering methods, but I don't think the code is available. There was also a State of the Art Review on matrix re-ordering methods from 2016 [5, 6]: it is mostly about the algorithms rather than available implementations, but it mentions reorder.js [7]. [1]: https://aviz.fr/bertifier https://aviz.fr/bertifier [2]: https://aviz.fr/bertifier_app/ https://aviz.fr/bertifier_app/ [3]: https://aviz.fr/wiki/uploads/Bertifier/bertifier-authorversion.pdf https://aviz.fr/wiki/uploads/Bertifier/bertifier-authorversi... [4]: https://vcg.seas.harvard.edu/publications/guiro-user-guided-matrix-reordering https://vcg.seas.harvard.edu/publications/guiro-user-guided-... [5]: https://onlinelibrary.wiley.com/doi/full/10.1111/cgf.12935 https://onlinelibrary.wiley.com/doi/full/10.1111/cgf.12935 [6]: https://bib.dbvis.de/uploadedFiles/MatrixReorderingSTAR.pdf https://bib.dbvis.de/uploadedFiles/MatrixReorderingSTAR.pdf [7]: https://github.com/jdfekete/reorder.js https://github.com/jdfekete/reorder.js

isoprophlex 6y ago
O wow, what a fantastic reply. Thanks a lot for all those delicious links!