ConvergenceClubs provides functions for clustering regions that form convergence clubs, according to the definition by Phillips and Sul (2009).
The main functions are:
findClubs(): finds clubs of convergence, given a dataset with regions in rows and years in columns, returning an object of class
mergeClubs(): takes as argument an object of class
convergence.clubsand applies the clustering procedure to the convergence clubs contained in the argument, according to either Phillips and Sul (2009) or von Lyncker and Thoennessen (2017) procedure.
convergence.clubs, the following methods are available:
summary(): shows the number of regions for each club of convergence and the number of divergent regions;
print(): prints main information about the clubs and divergent units in the
convergence.clubsobject (unit IDs, beta coefficient, p-value, ...);
dim(): return a vector of two elements, representing the number of clubs and the number of divergent units;
plot(): plots transition path.
To install the package from CRAN, simply run the following code in R:
Or, if you want to install the development version from GitHub:
# if not present, install 'devtools' package install.packages("devtools") devtools::install_github("rhobis/ConvergenceClubs")
library(ConvergenceClubs) data("filteredGDP") # Cluster Countries using GDP from year 1970 to year 2003 clubs <- findClubs(filteredGDP, dataCols=2:35, unit_names = 1, refCol=35, time_trim = 1/3, cstar = 0, HACmethod = "FQSB") summary(clubs) # Merge clusters mclubs <- mergeClubs(clubs, mergeMethod='PS', mergeDivergent=FALSE) summary(mclubs) mclubs <- mergeClubs(clubs, mergeMethod='vLT', mergeDivergent=FALSE) summary(mclubs) # Plot Transition Paths for all regions in each club and average Transition Path # for all clubs plot(mclubs) # Plot Only average Transition Paths plot(mclubs, clubs=NULL) plot(mclubs, clubs=NULL, legend=TRUE)
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