[Octave-cvsupdate] SF.net SVN: octave:[10613] trunk/octave-forge/extra/control-devel/inst/ __slicot_identification__.m

[<par...@us...>]

Revision: 10613
          http://octave.svn.sourceforge.net/octave/?rev=10613&view=rev
Author:   paramaniac
Date:     2012-06-11 10:31:23 +0000 (Mon, 11 Jun 2012)
Log Message:
-----------
control-devel: minor changes in comments

Modified Paths:
--------------
    trunk/octave-forge/extra/control-devel/inst/__slicot_identification__.m

Modified: trunk/octave-forge/extra/control-devel/inst/__slicot_identification__.m
===================================================================
--- trunk/octave-forge/extra/control-devel/inst/__slicot_identification__.m	2012-06-11 07:29:39 UTC (rev 10612)
+++ trunk/octave-forge/extra/control-devel/inst/__slicot_identification__.m	2012-06-11 10:31:23 UTC (rev 10613)
@@ -135,7 +135,9 @@
   ## perform system identification
   [a, b, c, d, q, ry, s, k, x0] = slident (dat.y, dat.u, nobr, n, meth, alg, conct, ctrl, rcond, tol);
 
-  ## L L' = Ry,  e = L v,  v becomes white noise with identity covariance matrix
+  ## compute noise variance matrix factor L
+  ## L L' = Ry,  e = L v
+  ## v becomes white noise with identity covariance matrix
   l = chol (ry, "lower");
 
   ## assemble model
@@ -169,6 +171,7 @@
   ## state covariance matrix Q
   ## output covariance matrix Ry
   ## state-output cross-covariance matrix S
+  ## noise variance matrix factor L
   info = struct ("K", k, "Q", q, "Ry", ry, "S", s, "L", l);
 
 endfunction

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