what is this illegal use of the end in face recognition

when iam trying to execute the face recognition code it is showing me the error '**illegal use of the end** 'what is this .if any one have experience in this project iam ready to send you the code help me out plz....

[Jan]

Posting the relevant part of the code would give us the chance to answer without guessing the details.

[uday]

 Q=imread('r6.jpg');
imginp=double(reshape(Q,64,1));
disp (' ');
disp ('Simulating SOM neural network for the input image...');
disp (' ');
msx=sim(net,imginp)
msxm=find(msx);
%classification and displaying output
disp (' ');
disp ('Classifying the subject in input image with the matched image in the training database...');
disp (' ');
ans=find((sm - msxm)==min(abs((sm-msxm))));
if (ans > 0) & (ans <= 5)
disp('Subject is identified to be: rock');
else if (ans > 5) & (ans <= 10)
disp('Subject is identified to be: hulk');
else if (ans > 10) & (ans <= 15)
disp('Subject is identified to be: bob');
else if (ans > 15) & (ans <= 20)
disp('Subject is identified to be: banda');
else
disp('Subject is not identified in the training database.');
    end
    end
    end
    end
end
when i try to execute it iam getting the following error y this is happening?
??? Error: File: C:\MATLAB7\work\trainsimsom.m Line: 63 Column: 1
Illegal use of reserved keyword "end".

Answer 1

[Matt J]

You are not allowed to use "if", "else", "elseif", or "end" as variable names, e.g.

    >> if=1,
     if=1,
      |
    Error: The expression to the left of the equals sign is not a valid target for an assignment.

    >> elseif=2
     elseif=2
    |
    Error: Illegal use of reserved keyword "elseif".

    >> else=3
     else=3
    |
    Error: Illegal use of reserved keyword "else".

    >> end=4
     end=4
    |
    Error: Illegal use of reserved keyword "end".

[uday]

thanks for your reply.but i did't declare end as a variable...