I couldn't run ardlDlm code run in the rstudio. It may be wrongly written.
data = (stata_exchange_rate)
x <- ardlDlm ( data = stata_exchange_rate , formula = lex ~ lin + lint P = 2, q = 2)
summary (x)
Same way I couldn't run ARDLbound test for exchange rate determination with Multiple independent variables.
data = (stata_exchange_rate)
x <- "ardlBound" ( data = stata_exchange_rate , formula = lex ~ lin + lint P = 2, q = 2)
summary(x)