Connecting two Matlab scripts under one loop

Hi, I written a matlab script to help me in some basic data filtration. Please see a copy of the code below. The code is for me well, however my problem is, I want to instruct the program to terminate when the first part's ccondition is not met (that is, when the percentage_S>4%), diplay the percentage and exit the operation without executing the second part which is demarcated by the comment. As at now, the two parts seems independent to each other.How can these two part be merged to dependent on each other? Such that execution of second part depend of execution of the first.You can use any random data as input if need be. Please help anyone there, thank you in advance.

A=input('enter wind speed mean\n');
%first part
a = numel(A(A<0));
 b  = numel(A(A>10));
 S = a+b;
 N =  numel(A);
 percentage_S = (S/N)*100;
 if percentage_S<4
     fprintf('Data is good proceed with analysis %g ', percentage_S)
 else 
 end
 %statrt of second part
nrows= numel(A);
ncols=1;
for i=1:nrows
    for j=1:ncols
        if A(i,j)<0
            A(i,j)=0;
        elseif A(i,j)>10
            A(i,j)=10;
        else 
            fprintf('the matrix is',A)
        end
    end 
end
A;
percentage_S

Answer 1

[VBBV]

A=100*rand(10,1); %input('enter wind speed mean\n');
%first part
a = numel(A(A<0));
 b  = numel(A(A>10));
 S = a+b;
 N =  numel(A);
 percentage_S = (S/N)*100

percentage_S = 80

 if percentage_S>4  % simply swap the conditon and put it otherway roudn    
     %statrt of second part
        nrows= size(A,1)
        ncols=1;
        for i=1:nrows
            for j=1:ncols
                if A(i,j)<0
                    A(i,j)=0;
                elseif A(i,j)>10
                    A(i,j)=10;
                else 
                    fprintf('the matrix is %d\n the percentage is %f\n',A, percentage_S)
                end
            end 
        end      
       
 else 
     fprintf('Data is good proceed with analysis %g ', percentage_S)
 end

nrows = 10

the matrix is 10
 the percentage is 1.435338
the matrix is 1.629579e+01
 the percentage is 47.914571
the matrix is 1.913592e+01
 the percentage is 7.383006
the matrix is 5.963818e+01
 the percentage is 81.977436
the matrix is 9.235086e+01
 the percentage is 97.338002
the matrix is 80
 the percentage is the matrix is 10
 the percentage is 1.435338
the matrix is 10
 the percentage is 10.000000
the matrix is 10
 the percentage is 7.383006
the matrix is 5.963818e+01
 the percentage is 81.977436
the matrix is 9.235086e+01
 the percentage is 97.338002
the matrix is 80
 the percentage is 

[VBBV]

Swap the condition in the if-else statement, and put them inside the if part

[okoth ochola]

thank you, this worked

Answer 2

[Jiri Hajek]

Hi, I'm responding to your request "I want to instruct the program to terminate when the first part's ccondition is not met ". You can use the terminating command return: https://www.mathworks.com/help/matlab/ref/return.html

[okoth ochola]

Wow, that was simple and fast. Thank you.