model.matrix.systemfit {systemfit} | R Documentation |
These functions create design matrices from objects
returned by systemfit
.
## S3 method for class 'systemfit': model.matrix( object, ... ) ## S3 method for class 'systemfit.equation': model.matrix( object, ... )
object |
an object of class systemfit or
systemfit.equation . |
... |
currently ignored. |
model.matrix.systemfit
returns a design matrix to estimate
the specified system of equations.
model.matrix.systemfit.equation
returns a design matrix to estimate
the specified formula of the respective equation.
Arne Henningsen arne.henningsen@googlemail.com
systemfit
, model.matrix
, and
model.frame.systemfit
data( "Kmenta" ) eqDemand <- consump ~ price + income eqSupply <- consump ~ price + farmPrice + trend system <- list( demand = eqDemand, supply = eqSupply ) ## perform OLS of the system fitols <- systemfit( system, data = Kmenta ) ## design matrix of the entire system model.matrix( fitols ) ## design matrix of the first equation model.matrix( fitols$eq[[ 1 ]] )