Notebooks
Filter
None
Sort
Last updated
Observable
Sign in
Harry Stevens
@harrystevens
News and graphics at @graphicsnyt
Filter
None
Sort
Published
289
18
Sigmoidal Regression
Fork
Harry Stevens
Jul 6
Logistic Regression
Fork
Harry Stevens
Jul 6
geometric.lineIntersection
Harry Stevens
Jun 12
1
geometric.polygonClose, geometric.polygonClosed
Harry Stevens
Jun 12
1
geometric.pointToLine
Harry Stevens
Jun 12
1
d3.geoAlbersUsaPrVertical
Fork
Harry Stevens
Oct 17, 2025
2
d3.geoAlbersUsaVertical
Fork
Harry Stevens
Oct 17, 2025
1
d3.geoHemispheres
Fork
Harry Stevens
Jan 22
8
Faceted Beeswarm
Harry Stevens
May 9, 2025
Convert RGB to N-channel CMYK
Harry Stevens
Jul 24, 2025
Kaprekar's constant
Harry Stevens
Mar 10, 2025
1
Americans’ preferences for suburban sprawl versus walkable neighborhoods
Fork
Harry Stevens
Dec 6, 2024
3
Square rotation
Harry Stevens
Nov 13, 2024
U.S. county snowfall trends and forecast
Fork
Harry Stevens
Nov 13, 2024
Change in annual snowfall in the United States
Fork
Harry Stevens
Nov 13, 2024
1
Sea surface temperature and jet stream winter forecasts
Fork
Harry Stevens
Dec 4, 2024
2
Snowfall forecast in the United States
Fork
Harry Stevens
Nov 18, 2024
2
Clip counties file
Harry Stevens
Nov 12, 2024
Data analysis for normalized U.S. hurricane losses, 1900-2017
Harry Stevens
Oct 24, 2024
3
Factors influencing U.S. hurricane losses, 1900-2017
Fork
Harry Stevens
Oct 24, 2024
1
Inflation-adjusted and normalized U.S. hurricane losses, 1900-2017
Fork
Harry Stevens
Oct 24, 2024
2
How we know humans are causing global warming
Harry Stevens
Oct 24, 2024
5
Billion-dollar disasters
Harry Stevens
Oct 24, 2024
1
Electricity production by source and country, 1990-2023
Harry Stevens
Oct 4, 2024
4
Table of an Object
Fork
Harry Stevens
Oct 3, 2024
Cage
Fork
Harry Stevens
Oct 21, 2024
How has mosquito season changed in your town?
Harry Stevens
Aug 22, 2024
Map: Change in length of mosquito season
Fork
Harry Stevens
Aug 22, 2024
Map: Temperature change in summer and winter, 1944-2023
Fork
Harry Stevens
Aug 13, 2024
1
Demonstration funding for clean energy technologies in the bipartisan infrastructure law
Harry Stevens
Jul 18, 2024
1
Where geologic conditions are favorable for enhanced geothermal
Harry Stevens
Jul 18, 2024
2
Average forecast error for daily high temperature, 1972-2023
Fork
Harry Stevens
Jun 28, 2024
Map of temperature forecast accuracy
Harry Stevens
Sep 19, 2025
5
Temperature forecast accuracy in U.S. cities
Fork
Harry Stevens
Jun 28, 2024
Rounded Polyline
Fork
Harry Stevens
Aug 17, 2024
2
Bayes’ Theorem
Harry Stevens
Jun 19, 2024
2
Daily heat index in select global cities in 2024
Fork
Harry Stevens
Jun 6, 2024
1
Six cities’ dangerous heat days since 1979
Fork
Harry Stevens
Jun 6, 2024
Map of dangerous heat days in 2024
Fork
Harry Stevens
Jun 7, 2024
2
Electricity demand vs. temperature in New York and Phoenix
Fork
Harry Stevens
May 21, 2024
2