cipstest(panel.df$rea, lags=2, type=c("trend"))
Error in xy.coords(x, y, setLab = FALSE) : 'x' and 'y' lengths differ
Please help.
cipstest(panel.df$rea, lags=2, type=c("trend"))
Error in xy.coords(x, y, setLab = FALSE) : 'x' and 'y' lengths differ
Please help.