[Octave-cvsupdate] SF.net SVN: octave:[10933] trunk/octave-forge/main/control

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

Revision: 10933
          http://octave.svn.sourceforge.net/octave/?rev=10933&view=rev
Author:   paramaniac
Date:     2012-08-30 07:28:18 +0000 (Thu, 30 Aug 2012)
Log Message:
-----------
control: fix a problem where an error was raised about an "undefined" function issiso

Modified Paths:
--------------
    trunk/octave-forge/main/control/NEWS
    trunk/octave-forge/main/control/inst/sensitivity.m

Modified: trunk/octave-forge/main/control/NEWS
===================================================================
--- trunk/octave-forge/main/control/NEWS	2012-08-30 06:02:40 UTC (rev 10932)
+++ trunk/octave-forge/main/control/NEWS	2012-08-30 07:28:18 UTC (rev 10933)
@@ -7,6 +7,10 @@
 ** plot
    A selection of experiments from iddata identification datasets can be
    plotted by  plot (dat, exp)  instead of  plot (dat(:,:,:,exp)).
+
+** sensitivity
+   Fixed a problem where an error was raised about an undefined function
+   "issiso".
    
 
 ===============================================================================

Modified: trunk/octave-forge/main/control/inst/sensitivity.m
===================================================================
--- trunk/octave-forge/main/control/inst/sensitivity.m	2012-08-30 06:02:40 UTC (rev 10932)
+++ trunk/octave-forge/main/control/inst/sensitivity.m	2012-08-30 07:28:18 UTC (rev 10933)
@@ -109,12 +109,12 @@
     if (length (Ms) > 1)
       error ("sensitivity: plotting only works for a single controller");
     endif
+    if (iscell (L))
+      L = L{1};
+    endif
     if (! issiso (L))
       error ("sensitivity: Nyquist plot requires SISO systems");
     endif
-    if (iscell (L))
-      L = L{1};
-    endif
 
     [H, w] = __frequency_response__ (L, [], false, 0, "ext");
     H = H(:);

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