i.map {RAT}

Map of international collaboration.

Description

Generates a network of international collaboration.

Usage

i.map(
  biblio,
  homeCountry = NULL,
  ext = c(-180, 180, -55, 90),
  sea.col = "white",
  country.col = "grey",
  country.border.col = "black",
  country.border.tick = 0.3,
  line.curvature = 0.1,
  line.size = 0.8,
  line.alpha = 0.4,
  line.color = "black",
  country.point.color = "white",
  country.point.line = "black",
  country.point.alpha = 0.8,
  country.size.proportional = FALSE,
  country.point.size = 1,
  homeCountry.point.color = "darkgrey",
  homeCountry.point.line = "black",
  homeCountry.point.alpha = 0.8,
  homeCountry.point.size = 5
)

Arguments

biblio

A data.frame exported from Web of Science as tab delimited text, full record OR a vector with country frequencies where names are the country names.

homeCountry

A character string specifying the country of origin of the researcher. Look at map$country for the complete list. If NULL, the country with most hits in Web of Science is used.

ext

extent of the bounding box of the map in decimal degrees (minX, maxX, minY, maxY).

sea.col

A character indicating the color of the sea.

country.col

A character indicating the color of the countries in the world.

country.border.col

A character indicating the color of the border among countries.

country.border.tick

An integer value defining the size of the border line among countries.

line.curvature

An integer value defining the curvature of the line connecting the home country with the countries of collaborators.

line.size

An integer value defining the size of the line connecting the home country with the countries of collaborators.

line.alpha

An integer value defining the transparency of the line connecting the home country with the countries of collaborators.

line.color

A character indicating the color of the line connecting the home country with the countries of collaborators.

country.point.color

A character indicating the color of the vertex representing each country.

country.point.line

A character indicating the color of line of the vertex representing each country.

country.point.alpha

An integer value defining the transparency of the vertex representing each country.

country.size.proportional

Logical. If TRUE, the size of each country is proportional to the number of collaborations.

country.point.size

An integer value defining the size of vertex representing each country. Ignored if country.size.proportional = TRUE.

homeCountry.point.color

A character indicating the color of the vertex representing the home country.

homeCountry.point.line

A character indicating the color of the line of the vertex representing the home country.

homeCountry.point.alpha

An integer value defining the transparency of the vertex representing the home country.

homeCountry.point.size

An integer value defining the size of vertex representing the home country.

Details

The network connects the researcher with all their collaborators.

Value

A map with the network of collaborations.

Examples

data(biblio)
i.map(biblio, country.size.proportional = TRUE)

biblio = c(5, 3, 2, 1)
names(biblio) = c("Finland", "Portugal", "Brazil", "Italy")
i.map(biblio)