gamma_conv {convergEU}

Gamma convergence

Description

Given a dataframe (tibble) of times by countries indicator, the gamma convergence is calculated. A time index is required. Missing values are not allowed.

Usage

gamma_conv(rawDat, ref = NA, last = NA, timeName = "time", printRanks = F)

Arguments

rawDat

the tibble made by times and countries.

ref

the reference time, typically zero.

last

the last time to be considered.

timeName

the name of the variable that contains time information.

printRanks

logical flag for printing ranks based on data.

Value

gamma convergence (indicated as KIt in Eurofound 2018 paper).

References

https://www.eurofound.europa.eu/system/files/2022-04/introduction-to-the-convergeu-package-0.6.4-tutorial-v2-apr2022.pdf

Examples

# Example 1
# Dataframe in the format time by countries:
require(tibble)
myTB  <- tibble::tribble(
    ~years, ~UK, ~DE, ~IT,
    1990,   998,  1250, 332,
    1988,   1201, 868, 578,
    1989,   1150, 978, 682,
    1991,  1600,  1350, 802
    )

# Gamma convergence,  scrambled time and different time name:
resGamma <- gamma_conv(myTB,ref=1988, last=1991, timeName="years")

# Example 2
myTB1  <- tibble::tribble(
    ~time, ~UK, ~DE, ~IT,
    1990,   998,  1250, 332,
    1988,   1201, 868, 578,
    1989,   1150, 978, 682,
    1991,  1600,  1350, 802
    )
resGamma1 <- gamma_conv(myTB1, ref=1989,last=1990)

# Example 3
# Gamma convergence for the emp_20_64_MS Eurofound dataset:
data("emp_20_64_MS")

# check name of the time variable
names(emp_20_64_MS)
resGamma2<-gamma_conv(emp_20_64_MS,ref=2002,last=2005)
resGamma3<-gamma_conv(emp_20_64_MS,ref=2002,last=2018)
# Print also ranks based on data:
resGamma4<-gamma_conv(emp_20_64_MS,ref=2002,last=2018,printRanks=TRUE)