durbinlevinson Perform one step of the Durbin-Levinson algorithm.. Calling Sequence durbinlevinson (C); durbinlevinson (C, OLDPHI); durbinlevinson (C, OLDPHI, OLDV); Parameters C: The vector C specifies the autocovariances '[gamma_0, ..., gamma_t]' from lag 0 to T. OLDPHI: It specifies the coefficients based on C(T-1). OLDV: It specifies the corresponding error. Description This is an Octave function. Perform one step of the Durbin-Levinson. If OLDPHI and OLDV are omitted, all steps from 1 to T of the algorithm are performed.