How to bulid multiple loops with logic operators

Hello everyone,

I am relatively new to Matlab and have a question about the implementation of a logical linkage. My idea was to build it in two loops.

I have a data sheet with two columns. Now I want to compare the first value in column 1 with the first value in column 2.

Depending on whether it is >,< or == I want to apply a certain formula.

This formula must be based on a starting value No. Depending on what the first logical link delivers, No,1 should be calculated, and so on.

When applying the code I get the error:

"Array indices must be positive integers or logical values"

Could someone help me?

Thanks a lot

Kim

This is the Code I got so far:

>> No = 23.393; % in N/n
stress_w1_1=stress_w1(:,1);
stress_w1_2=stress_w1(:,2);
number_w1_1 = size(stress_w1(:,1), 1);
for i=1:number_w1_1                                 % First Loop
    if (stress_w1_1(i) < stress_w1_2(i))       %Second Loop
        for x=1:number_w1_1
            if x==1
                N_limit=No;
            elseif x==2:number_w1_1
                N_limit=0.9*N_limit;
            end
        end
   elseif (stress_w1_1(i) > stress_w1_2(1i))
       for x=1:number_w1_1                                %Second Loop
            if x==1
                N_limit=No;
            elseif x==2:number_w1_1
                N_limit=1.2*N_limit;  
            end
       end
   elseif (stress_w1_1(i) == stress_w1_2(i))
       for x=1:number_w1_1                               %Second Loop
            if x==1
                N_limit=No;
            elseif x==2:number_w1_1
                N_limit=N_limt(x-1);
            end
       end     
    end
end

Answer 1

[Ameer Hamza]

You mistakenly typed 1i (imaginary number in MATLAB) instead of i

elseif (stress_w1_1(i) > stress_w1_2(1i))
                                    %^ remove this 1