kerview: A linked-window system for browsing space-time data

In splancs: Spatial and Space-Time Point Pattern Analysis

A linked-window system for browsing space-time data

Description

A linked-window system for browsing space-time data.

Usage

kerview(pts, times, k3, map=TRUE, addimg=TRUE, ncol=1)

Arguments

pts	A matrix of event x,y coordinates.
times	A vector of event times.
k3	An object returned from kernel3d, the space-time kernel smoothing function
map	If false, don't plot the map display.
addimg	If true, overwrite successive images in the image display, else make a fresh image plot each time.
ncol	Number of columns and rows for multiple images and maps.

Details

This function displays three linked views of the data. In the current graphics window a temporal slice from the kernel smoothing is displayed. Another graphics device is started to display a map of the data that contributed to that time-slice. A third graphics device shows a histogram of the times of the events. Clicking with the mouse in this window with button 1 sets the time for the other displays to the time on the x-axis of the histogram at the clicked point.

In this way the 3-dimensional kernel smoothed function can be browsed, and the corresponding map of the data compared.

References

Rowlingson, B. and Diggle, P. 1993 Splancs: spatial point pattern analysis code in S-Plus. Computers and Geosciences, 19, 627-655; the original sources can be accessed at: https://www.maths.lancs.ac.uk/~rowlings/Splancs/. See also Bivand, R. and Gebhardt, A. 2000 Implementing functions for spatial statistical analysis using the R language. Journal of Geographical Systems, 2, 307-317.

See Also

kernel3d

splancs documentation built on May 29, 2024, 6:22 a.m.