[Stat,Crit] = lrtest(V1,V2,Level)
V1 [ VAR ] - Unrestricted VAR model.
V2 [ VAR ] - Restricted VAR model.
Level [ numeric ] - Significance level; if not specified, 5 percent significance is used, Level=0.05.
Stat [ numeric ] - LR test stastic.
Crit [ numeric ] - LR test critical value based on chi-square distribution.