Choropleth Plot map: is there a way to apply Jenks classification?

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1

Hi,
I have built my first Observable choropleth map, and I’m really proud of it.

In the desktop software I use, QGIS, it is possible to color maps by choosing a palette and a classification method. One of these is Jenks.

There, in my OBS map, with such large ranges of values (between min and max), I’ve applied a logarithmic scale.
But the groups of similar polygons are not visible well, which I would have using a method like Jenks.

Is there to apply something similar, using Plot.geo?

Thank you for this great great library

2

Plot doesn’t offer Jenks breaks built-in, but you can definitely add them; I’ve sent you a suggestion in Comparing PNRR - mappa localizzazioni progetti comunali to PNRR - mappa localizzazioni progetti comunali | Observable

It builds up on the implementation by Tom McWright that I found on https://gist.github.com/tmcw/4977508—there might be a better way.

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3

Wow really useful, thank you very much!

4

Is there a way to create a copy of your version, without merge it in my notebook?

I would like to keep copies of both and study a bit.

Thank you

5

There are several ways to do this. For example maybe you can merge it, fork your notebook (with the new code), then revert the changes in your original notebook?

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