1 files changed, 26 insertions, 0 deletions
diff --git a/modules/cacsd/macros/arma2p.sci b/modules/cacsd/macros/arma2p.sci
new file mode 100755
index 000000000..88570a96e
--- /dev/null
+++ b/modules/cacsd/macros/arma2p.sci
@@ -0,0 +1,26 @@
+// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+// Copyright (C) INRIA -
+//
+// This file must be used under the terms of the CeCILL.
+// This source file is licensed as described in the file COPYING, which
+// you should have received as part of this distribution.  The terms
+// are also available at
+// http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
+
+
+function [A,B,D]=arma2p(ar)
+    // Build three polynomial matrices
+    // from an ar representation
+    if ar(1)<>"ar" then
+        error(msprintf(gettext("%s: Wrong type for input argument #%d: %s data structure expected.\n"),..
+        "arma2p",1,"armax"));
+    end;
+    A=inv_coeff(ar(2));
+    if ar(3)<>[] then
+        [mb,nb]=size(ar(3));
+        B=inv_coeff(ar(3),(nb/ar("nu"))-1);
+    else
+        B=[];
+    end
+    D=inv_coeff(ar(4));
+endfunction