emlc issue

Question

Jeremiah 2011-7-27

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/12513-emlc-issue

Hi i have been trying to convert my .m file into C generated code. So far it got stuck in the 'switch' function where it shows this error --Expected a numeric value. Found a mxArray

The code is shown below:-

 function [] = AIS2
  2
  3%
  4
  5
  6   % figure(1); clf;
  7  % v = cadeia(100,44,0,0,0);%v = [ab,ag] = cadeia(n1,s1,n2,s2,bip) n1 = Population size s1= size of vector
  8  
  9gen =500; P = 150;  fact=.2;  n = size(P,1);ts = 0.2;  Nc=100;beta = 5;  pm = 0.05; per = 0.0; N= Nc;   
 10nump = 3;%number of classes4
 11no = 3;%number of images per class
 12L = fact;
 13fitin = 0.2;
 14eml.extrinsic('sprintf')
 15eml.extrinsic('disp')
 16eml.extrinsic('input')
 17
 18
 19
 20
 21  disp(sprintf('** Clonal Selection Algorithm**\n')); 
 22   disp(sprintf('1)Hybrid technique\n'));
 23   disp(sprintf('2) CLONALNet\n'));
 24disp(sprintf('3)CLONALNet with Pattern Recognition\n'));
 25   
 26     *task = input('Please choose either one of the technique* (1),(2) or (3): ');
 27   *switch task*,
 28       case 1,
 29           [~,~,~,~,vfx,] = optimization2(P,gen,N,pm,per,fact,n,Nc,beta);%function call for optimization and vector for best fitness.
 30        case 2,
 31           [~,x,y,fx,vfx] = opt(ts,N,Nc,beta,gen);
 32            disp(sprintf('Minimum value found [x,y,f(x,y)]: [%2.10f,%2.10f,%2.10f]',x,y,fx));                
 33                 %save filename x y fx 
 34                 %vfx;
 35       case 3,                         
 36          
 37           % %Initialization of population within 3intervals (xmax/xmin/ymax/ymin)
 38   [C] = patternrecog(nump,no,gen,beta,fitin); 39   
 40 
 41
 42 %[Ab,x,y,fx,vfx,vmfit] = patternrecog(pm,per,N,gen,X);                   
 43      
 44       otherwise,
 45           disp('Please enter a valid value');
 46           return;
 47   end;

Kindly appreciate the help...

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Fangjun Jiang 2011-7-27

What is the '*' symbol in your code, such as *task=input(), *switch task*

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Answer 1

Fred Smith 2011-7-27

2
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/12513-emlc-issue#answer_17107

Hi Jeremiah,

Add the line task = 0; before the line task = input .....

This tells EMLC that you are expecting a double from the extrinsic MATLAB call to "input". Without this hint, EMLC does not have any idea what input will return and therefore will treat it as an mxArray.

Please refer to the documentation on extrinsic calls for a more detailed explanation.

HTH,

Fred

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Jeremiah 2011-7-27

It worked.. Thanks guys...

Jeremiah 2011-7-27

It means that you have to apply the eml.extrinsic command on each function to eliminate them from being compiled by MATLAB?

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Answer 2

Jeremiah 2011-7-27

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https://ww2.mathworks.cn/matlabcentral/answers/12513-emlc-issue#answer_17126

在 MATLAB Online 中打开

Hi,

I have another similar issue. I got this error after compilation using emlc -. It says '??? Undefined function or variable 'a'. The first assignment to a local variable determines its class.'

[R,Q]=size(P); 
epochs = 500;      % number of iterations
goal_err = 10e-5;    % goal error
b1=a + (b-a) *rand(S1,1);     % Weights between Input and Hidden Neurons
b2=a + (b-a) *rand(S2,1);     % Weights between Hidden and Output Neurons
n1=W1*P;
A1=logsig(n1);%can change to Ab1 = (xmax + rand(N,1).*(xmin-xmax))./2;
b=-0.3;
W1=a + (b-a) *rand(S1,R);     % Weights between Input and Hidden Neurons
a=0.3;                            % define the range of random variables
W2=a + (b-a) *rand(S2,S1);    % Weights between Hidden and Output Neurons
n2=W2*A1;
A2=logsig(n2);%can change to  Ab2 = (ymax + rand(N,1).*(ymin-ymax))./2;
e=A2-T;
error =0.5* mean(mean(e.*e));