- cranvas: R package for interactive graphics
- Little graphics research in exploring temporal data
- Need of more interactions than zooming, panning, identifying, brushing, …
Exploring Temporal Data Interactively
Xiaoyue Cheng, Di Cook, Heike Hofmann
February 24, 2015
The story started from …
cranvastime
- Interactive time plots for
- univariate time series
- multivariate time series
- longitudinal data
- To explore
- trends
- periodicity
- seasonality
- dependence
- individual differences
- anomalies
Wrapping: explore the periodicity
- Flu trend
- source: http://www.google.org/flutrends/us/data.txt
- Flu searches from New York since 9/28/2003
Facetting: compare different series
- NASA data
- variables: elevation, temperature (surface and air), ozone, air pressure, and cloud cover (low, mid, and high)
- monthly averages from Jan 1995 to Dec 2000
- geographically and atmospherically measured on a very coarse 24 by 24 grid covering Central America
- obtained from the NASA Langley Research Center Atmospheric Sciences Data Center
Linking: view from different sides
- US monthly temperature for over 100 years
- 1218 weather stations
Future work
- Frequency domain
- Polar coordinates
- Lag plots