Waiting time between eruptions and the duration of the eruption for the [[Old Faithful Geyser in Yellowstone National Park, Wyoming, USA. This chart suggests there are generally two "types"of eruptions: short-wait-short-duration, and long-wait-long-duration.

Robust Locally Weighted Regression and Smoothing Scatterplots
Taylor & Francis Online :: Robust Locally Weighted Regression and Smoothing Scatterplots - Journal of the American Statistical Assoc...
Robust Locally Weighted and Smoothing Scatterplots
LOWESS: A Program for Smoothing Scatterplots by Robust Locally Weighted Regression
Brushing scatterplots
The Moran Scatterplot as an ESDA Tool to Assess Local Instability in Spatial Association
The Many Faces of a Scatterplot
The Many Faces of a Scatterplot
Mixing of polar vortex air into middle latitudes as revealed by tracer‐tracer scatterplots
Mixing of polar vortex air into middle latitudes as revealed by tracer-tracer scatterplots