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-rw-r--r--man/arx.Rd6
1 files changed, 5 insertions, 1 deletions
diff --git a/man/arx.Rd b/man/arx.Rd
index 1b121c1..c47b1e0 100644
--- a/man/arx.Rd
+++ b/man/arx.Rd
@@ -4,7 +4,7 @@
\alias{arx}
\title{Estimate ARX Models}
\usage{
-arx(x, order = c(1, 1, 1), lambda = 0.1, intNoise = FALSE)
+arx(x, order = c(1, 1, 1), lambda = 0.1, intNoise = FALSE, fixed = NULL)
}
\arguments{
\item{x}{an object of class \code{idframe}}
@@ -17,6 +17,10 @@ the input-output delay}
\item{intNoise}{Logical variable indicating whether to add integrators in
the noise channel (Default=\code{FALSE})}
+
+\item{fixed}{list containing fixed parameters. If supplied, only \code{NA} entries
+will be varied. Specified as a list of two vectors, each containing the parameters
+of polynomials A and B respectively.}
}
\value{
An object of class \code{estpoly} containing the following elements: