Hi!
Would be grateful if somebody helped me understand this error message after
trying to run a panel data:
PanelData <- read.xls("/Users/Bahman/Desktop/Taylor
rule/Data/PanelData2.xls")
attach(PanelData)
# Panel Data regresson for all countrys.
> Answer <- plm(NOM.INT.RATE ~ INFL + TARGET.INFL +
> DEVIATION.FROM.TARGET.INFL + NOM.INT.RATE , data=PanelData,
> model="within")
> duplicate couples (time-id)
Error in pdim.default(index[[1]], index[[2]]) :
What does this error mean? What am I doing wrong?
/ Saint
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