Error in passing parameter for MATLAB function From .net

1 view (last 30 days)
Dear all, I was trying to communicate MATLAB with .Net.
I created X and Y variables and Testing values are x=[1,2,3,4,5] and Y=[5,10,15,20,25] and created the model(amx) using Identification Tool. Then saved as .MAT file. The problem is, when I am passing values from C#.net If MATLAB function is like this working fine,
function [out]= test(path, X, Y,pos) load(path); d=iddata(X,Y,1); y1=predict(amx,d); a=y1.y(pos); out =a;
Running Command in MATLAB is,
Test(‘C:\Test\\Tables.mat’,[11;12;13;14;15],[55;60;65;70;75];3)
ans= 15
But answer was based on our created X and Y values, it won’t to consider passing values. So I made change in MATLAB function as,
function [out]= test(path,inputX,outputY,pos) load(path); d=iddata(outputY,inputX,1); y1=predict(amx,d); a=y1.y(pos); out =a;
Now I am facing Error like,
“MWMCR::EvaluateFunction error: Error using ==> idmodel.predict at 111 Mismatch in input/output numbers for model and data.Error in =>passmodel.m at 4.”
C# code is, TABS.TABS_CLASS obj = new TABS.TABS_CLASS();
double[] input = new double[5] { 11, 12, 13, 14, 15 }; double[] output = new double[5] { 55, 60, 65, 70, 75 }; double pos = 2;
MWNumericArray InputX = (MWNumericArray)input;
MWNumericArray OutputY = (MWNumericArray)output;
MWNumericArray mwchar = null; mwchar = (MWNumericArray)obj.test(@"C:\5TAB\5TABS.mat",InputX, OutputY, (MWNumericArray)pos);
Thanks

Accepted Answer

Rajiv Singh
Rajiv Singh on 12 Jul 2011
Hi Sathiyaseelan, Do you still have a question?
  2 Comments
Sathiyaseelan
Sathiyaseelan on 13 Jul 2011
hello,
yup., I want to know about Model Predictive Control(MPC). Actually i am a .net application developer just i want to communicate MPC with .net application. I already done MATLAB Identification Tool with .net but now i can run in MPC in MATLAB but not able to run in .net. It showing error in using predictive keyword.
Rajiv Singh
Rajiv Singh on 14 Jul 2011
You should create a separate thread for your MPC question. Also post more details on your task - what you did, errors you saw and help you need.

Sign in to comment.

More Answers (1)

Sathiyaseelan
Sathiyaseelan on 4 Jul 2011
if we change MATLAB code as, function [out]= test(path, X, Y,pos) load(path); d=iddata(X(:),Y(:),1); y1=predict(amx,d); a=y1.y(pos); out =a; its working fine.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!