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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`convergence.clubs`

.`mergeClubs()`

: takes as argument an object of class`convergence.clubs`

and 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.

For class `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.clubs`

object (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*:

```
install.packages("ConvergenceClubs")
```

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)
```

- Please, report any bug or issue here.
- For more information, please contact the maintainer at
`rob.sichera@gmail.com`

.

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