Hi Mr Mike, been trying to follow this notebook step by step to create a Chloropleth map for Nigeria. But I am stuck now. The issue is that I seem not to be able to relate my data (consisting of the population of the Nigerian States in 2006) to the geojson file so I am able to produce this same shading according to unemployment rate like you did. Key points: I have produced the Map. I need to be able to represent the population size of each state of the federation. see the note here https://observablehq.com/d/d932c0acd0bdf37a. I appreciate your guidance in advance.

Hello! Can you please "Enable link sharing" on your notebook?

I have done that. Thanks

I have sent you a suggestion https://observablehq.com/compare/d932c0acd0bdf37a@260...f32659f6f94a3c3a@270

Thanks so much. You did exactly what I wanted. Is there any better way to contact you next time? Cannot thank you enough for this one

You're welcome. You can find help on D3 here, on slack and on stackoverflow. Don't hesitate to ask :)

Oh, I am so grateful for the offer to help!

I am kind of getting something really wrong about the tooltip. All my efforts to add one is to no avail. Your help is quite appreciated once again.

The data is actually from 2006 to 2016. I want to be able to filter through using select buttons (see selectedStatus) and each year should display the correspondingly. Thanks

Still hoping to get your assistance. Thanks.