Module NSPE in IMSLSCompute preliminary estimates of the autoregressive and moving average parameters of an ARMA model.
CALL NSPE (NOBS, W, IPRINT, IMEAN, WMEAN, NPAR, NPMA, RELERR, MAXIT, CONST, PAR, PMA, AVAR)| L10a2d1 | ARMA and ARIMA model identification |