boxplotmap: Interactive boxplot and map

In tibo31/GeoXp: Interactive Exploratory Spatial Data Analysis

Interactive boxplot and map

Description

The function boxplotmap() draws a boxplot of the given variable name.var and a map with site of coordinates sf.obj.

Usage

boxplotmap(sf.obj, name.var, criteria = NULL, carte = NULL, 
  identify = NULL, cex.lab = 0.8, pch = 16, col = "lightblue3", 
  xlab = "", ylab = "", axes = FALSE, lablong = "", lablat = "")

Arguments

sf.obj	object of class sf
name.var	a character; attribute name or column number in attribute table
criteria	a vector of boolean of size the number of spatial sites, which permit to represent preselected sites with a cross, using the tcltk window
carte	matrix with 2 columns for drawing spatial polygonal contours : x and y coordinates of the vertices of the polygon
identify	if not NULL, the name of the variable for identifying observations on the map
cex.lab	character size of label
pch	16 by default, symbol for selected points
col	"lightblue3" by default, color of bars on the boxplot
xlab	a title for the graphic x-axis
ylab	a title for the graphic y-axis
axes	a boolean with TRUE for drawing axes on the map
lablong	name of the x-axis that will be printed on the map
lablat	name of the y-axis that will be printed on the map

Details

There is an interactivity only in one direction : the sites selected by interquartile on the boxplot are represented on the map in red.

Value

In the case where user click on save results button, a vector of integer is created as a global variable in last.select object. It corresponds to the number of spatial units selected just before leaving the Tk window.

Author(s)

Thomas-Agnan C., Aragon Y., Ruiz-Gazen A., Laurent T., Robidou L.

References

Thibault Laurent, Anne Ruiz-Gazen, Christine Thomas-Agnan (2012), GeoXp: An R Package for Exploratory Spatial Data Analysis. Journal of Statistical Software, 47(2), 1-23.

Roger S.Bivand, Edzer J.Pebesma, Virgilio Gomez-Rubio (2009), Applied Spatial Data Analysis with R, Springer.

See Also

histomap, histobarmap, scattermap, densitymap

Examples

######
# data columbus
require("sf")
columbus <- st_read(system.file("shapes/columbus.shp", package="spData")[1])

# a basic use of boxplotmap
boxplotmap(columbus, "CRIME", criteria = (columbus@data$CP == 1), 
  xlab = "Crime", ylab = "Percent", identify = TRUE, cex.lab = 0.7)

## Not run:  
# data boston
require(sf)
boston <- st_read(system.file("shapes/boston_tracts.shp", package="spData")[1])

# a simple use of boxplotmap
boxplotmap(boston, "MEDV", criteria = (boston$CHAS == 1))

## End(Not run)

tibo31/GeoXp documentation built on April 8, 2023, 7:50 a.m.