how to construct stacked matrix when to construct a matrix of independent variable in var regression how to construct a matrix in a vaar regression how to construct a matrix in var regression how to construct matrix of independent variables in var regression which regression model should be constructed as a matrix of independent and dependent variables? how to construct matrix in variance regression how to construct matrix of independent and dependent variables how to build matrix of independent variable on var regression var matrix of independents do you need to construct matrix of independent and independent variables? how to construct matrix of independent variables in a var regression model what is the matrix of independent variable in var regression how to construct a matrix of independent variables in a var regression how to construct matrix in a vag which variable should be stacked in a var regression equation what is the matrix of independent variables in a var regression how do construct a matrix based on independent and dependent variables how to construct matrix of independent variables can independent variables be stacked and used in var regression