geojs | Geo-location lookup API | REST library

It seems you want to change the query params based on the users country. We don't need to change window.location.host. You can change query params using window.location.search.

However, you only want to change window.location.search if it does not match your desired value (to avoid reloading infinitely). The solution below assumes currency is the only query param in your URL.

• your sample data is not really usable for doing what you describe. Have used Northern Ireland geometry, population and COVID cases to demonstrate
• used dissolve() as you describe, have not bothered with fact some of the attributes cannot be summed (long and lat)
• simpler to see through visualisation, so have provided plots as each stage
• updated to use pandas cumsum() functionality to sub-divide regions for each time population exceeds 300K
• this dissolves C into 3 areas and E into 2 areas

You're resetting the list every time the loop runs by including co=[] in your function as it calls the function every time.

Move your co=[] above and outside of the function.

You can try…catch it to prevent breaking out of loop.

It looks like you have a couple relatively large values, while most are small. This causes 'skewing' of your color scale in a way that looks less interesting. Instead of graphing number of users, consider mapping based on a quantile .

Here is an implementation of grouping into quantiles using cut2() from Hmisc. In this case, values are cut into 5 groups.