Hongtao Hao / Observable

Product Teams About Community

Learn

Search for View all results

Hongtao Hao

@hongtaoh

Profile Notebooks Collections

Hongtao Hao

https://hongtaoh.com

Public notebooks

The difference between d3.rollup and d3.group

Feb 23

Bar chart race of Coronavirus confirmed cases

Nov 14

COVID-19 Confirmed vs. New cases

Nov 4

COVID-19 Spreading trends

Nov 3• 8

COVID-19 Fatality Rate

Nov 3

Manipulating Covid-19 data

Oct 8

Public collections

40 Days of learning D3 (32)

© 2021 Observable, Inc.

Home Product Teams About Jobs Contact Terms