From 5e2cb5898aff4b15e5d9a14576c001c52684ddba Mon Sep 17 00:00:00 2001 From: Suraj Yerramilli Date: Wed, 16 Mar 2016 19:23:55 +0530 Subject: Updating iv documentation --- man/iv.Rd | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) (limited to 'man') diff --git a/man/iv.Rd b/man/iv.Rd index 54d44d2..880aeb4 100644 --- a/man/iv.Rd +++ b/man/iv.Rd @@ -34,18 +34,6 @@ Estimates an ARX model of the specified order from input-output data using the instrument variable method. If arbitrary instruments are not supplied by the user, the instruments are generated using the arx routine } -\details{ -SISO ARX models are of the form -\deqn{ - y[k] + a_1 y[k-1] + \ldots + a_{na} y[k-na] = b_{nk} u[k-nk] + - \ldots + b_{nk+nb} u[k-nk-nb] + e[k] -} -The function estimates the coefficients using linear least squares (with -regularization). -\cr -The data is expected to have no offsets or trends. They can be removed -using the \code{\link{detrend}} function. -} \examples{ data(arxsim) mod_iv <- iv(z,c(2,1,1)) @@ -59,6 +47,6 @@ Lennart Ljung (1999), \emph{System Identification: Theory for the User}, 2nd Edition, Prentice Hall, New York. Section 7.6 } \seealso{ -arx +\code{\link{arx}}, \code{\link{iv4}} } -- cgit