how to add exogenous variables is dlm a variables package can exogenous variables be added to an estimate with dlm package r what are exogenous variables in r what variables are included with dlm package how to add exogenous variable to state space model in r what is exogenous variables what package is the state model dlm can r include exogenous variable what is the exogenous variable in state space? how to add exogenous variable into state space model what variable does dlm include in r r add exogenous variables is dlm an exogenous variable which package includes exogenous variables is dlm a package what is the exogenous variable do state space models have exogenous variables r add exogenous variables why use exogenous variables