Usage: 
msarimamodelOut = msarimamodel(d,arma,season)

Input: 
 d  list containing at most two elements:

 d.el1
Defintion integer, order for ordinary differences  list specifying the ordinary AR and MA parts, composed at most of four elements:

 d.el2
Defintion integer, (optional) order of the seasonal difference  vector, AR lags

 arma  vector, MA lags

 arma.el1  vector, coefficients of the AR part

 arma.el2  vector, coefficients of the MA part
If your model has only one part, set the lags of the other part to 0.
In this case specify only one coefficient vector. If your
model has no ordinary ARMA part, just set arma=list(0,0).

 arma.el3  list specifying the seasonal AR and MA parts, composed at most of five elements:

 arma.el4  scalar, season (e.g. 4, 12)

 season  vector, seasonal AR lags

 season.el1  vector, seasonal MA lags

 season.el2  vector, coefficients for the seasonal AR part

 season.el3  vector, coefficients for the seasonal MA part
If your model has only one part, set the lags of the other part to 0.
In this case specify only one coefficient vector. If your
model has no seasonal part, just set season=list(0).

Output: 
 msarimamodelOut  list  composed of d, arlag, malag, s, sarlag, smalag, phi, theta, Phi, Theta 
containing all information about the multiplicative seasonal model. 
 msarimamodelOut.d  vector, difference orders 
 msarimamodelOut.arlag  vector, ordinary AR lags 
 msarimamodelOut.malag  vector, ordinary MA lags 
 msarimamodelOut.s  vector, season 
 msarimamodelOut.sarlag  vector, seasonal AR lags 
 msarimamodelOut.smalag  vector, seasonal MA lags 
 msarimamodelOut.phi  vector, AR coefficients 
 msarimamodelOut.theta  vector, MA coefficients 
 msarimamodelOut.Phi  vector, seasonal AR coefficients 
 msarimamodelOut.Theta  vector, seasonal MA coefficients 