Observable notebook for data classification. This notebook includes variables and codes to define classification methods and color schemes
Image source: https://www.axismaps.com/guide/data/data-classification
Observable notebook for choropleth mapping. This map shows the percentage of young population (age 20-34) in California
Observable notebook for bivariate choropleth mapping. This map represents the correlations between the percentage of young population and the level of income
Observable notebook for proportional symbol mapping. This map displays the population of age 20-34 using the sizes of points.
Observable notebook for isarithmic mapping. This map visualizes yearly total precipitation in Iowa
Multiple choropleth maps for visualizing demographic factors in California, which include median age, median income, young population, education level of young population
Observable notebook for Twitter statistics - the number of tweets aggregated by month, weekday, and hour of day
Interactive heatmaps of Hurricane Irma related tweets