cholera-package: cholera

In lindbrook/cholera: Amend, Augment and Aid Analysis of John Snow's Cholera Map

cholera

Description

Amend errors, augment data and aid analysis of John Snow's map of the 1854 London cholera outbreak.

Details

• Fixes two sets of errors in Dodson and Tobler's 1992 digitization of Snow's map: 1) three misplaced cases/fatalities and 2) one missing road segment (part of Clifford Street).

• "Unstacks" the data in two ways to make analysis and visualization easier and more meaningful.

• Computes and visualizes "pump neighborhoods" based on Voronoi tessellation, Euclidean distance, and walking distance.

• Overlay graphical elements and features like kernel density estimates, Voronoi diagrams, Snow's Broad Street neighborhood, and notable landmarks (John Snow's residence, the Lion Brewery, etc.) via 'add*()' functions.

• Includes a variety of functions to highlight specific cases, roads, pumps and paths.

• Appends actual street names to roads data.

• Includes the revised pump data used in the second version of Snow's map from the Vestry report, which includes the "correct" location of the Broad Street pump.

• Adds two different aggregate time series fatalities data sets, taken from the Vestry report.

• Support for parallel computation on Linux, macOS and Windows.

• With 'cholera' version >= 0.8.0, preliminary and provisional support for georeferenced (longitude and latitude) versions of data and functions.

To learn more, see the vignettes:

vignette("duplicate.missing.cases")

vignette("kernel.density")

vignette("parallelization")

vignette("pump.neighborhoods")

vignette("roads")

vignette("tiles.polygons")

vignette("time.series")

vignette("unstacking.bars")

Author(s)

Maintainer: lindbrook [e-mail]

See Also

Useful links:

• https://github.com/lindbrook/cholera

• Report bugs at https://github.com/lindbrook/cholera/issues

lindbrook/cholera documentation built on Jan. 13, 2025, 3:49 p.m.