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problem using sim through c#

nd2009nd2009 Member Posts: 1
Following error occurs while calling sim function of matlab through c#


[b]/*

System.Exception was unhandled
Message="

... MWMCR::EvaluateFunction error ...
Undefined function or method 'sim' for input arguments of type 'struct'.Error in =>pqr.m at 5.

... Matlab M-code Stack Trace ...
at
file C:\WINDOWS\TEMP\Group 3\mcrCache7.9\Untitl3\Documents and Settings\Group 3\Desktop\pqr.m,name pqr,line at 5.

"
Source="MWArray"
StackTrace:
at MathWorks.MATLAB.NET.Utility.MWMCR.EvaluateFunction(String functionName, Int32 numArgsOut, Int32 numArgsIn, MWArray[] argsIn)
at MathWorks.MATLAB.NET.Utility.MWMCR.EvaluateFunction(Int32 numArgsOut, String functionName, MWArray[] argsIn)
at Untitled2.Untitled2.pqr()
at Script_recognition_OCR.Form1.button2_Click(Object sender, EventArgs e) in C:Documents and SettingsGroup 3DesktopScript recognition OCR workingScript recognition OCRForm1.cs:line 529
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(Form mainForm)
at Script_recognition_OCR.Program.Main() in C:Documents and SettingsGroup 3DesktopScript recognition OCR workingScript recognition OCRProgram.cs:line 18
at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException: */[/b]

what shoule be done to solve it.
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