function [a,b,err] = shanks(x,p,q)

SHANKS　　Model a signal using Shanks method

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Usage: [a,b,err] = shanks(x,p,q)



　　The sequence x is modeled as the unit sample response of

　　a filter having a system function of the form

　　　　H(z) = B(z)/A(z)

　　The polynomials B(z) and A(z) are formed from the vectors

　　　　b=[b(0), b(1), ... b(q)]

　　　　a=[1 , a(1), ... a(p)]

　　The input q defines the number of zeros in the model

　　and p defines the number of poles. The modeling error

　　is returned in err.-function [a,b,err] = shanks(x,p,q)

SHANKS　　Model a signal using Shanks　method

----

Usage: [a,b,err] = shanks(x,p,q)



　　The sequence x is modeled as the unit sample response of

　　a filter having a system function of the form

　　　　H(z) = B(z)/A(z)

　　The polynomials B(z) and A(z) are formed from the vectors

　　　　b=[b(0), b(1), ... b(q)]

　　　　a=[1　 , a(1), ... a(p)]

　　The input q defines the number of zeros in the model

　　and p defines the number of poles.　The modeling error

　　is returned in err.