how to manipulate the output of a for loop to get the sum of the output data set

Question

segun 2014-4-15

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评论： segun 2014-4-15

Please i need hint on how to manipulate the output from a for loop do summation of differences between it and a data set. An example is shown below. I tried it but it only computed for the first for loop neglecting the other data set.

for f = [1 4  8  10];
 b=2;
 c=1;
 d=1;
 n=4;
 N= f*b*c*d
 M=[4.5  10  20  25];
 Y = (M-N)/M;
 Z=(100/n);
 A =(sum(Y)*Z);
end
disp(A)

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Answer 1

Mischa Kim 2014-4-15

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编辑：Mischa Kim 2014-4-15

在 MATLAB Online 中打开

Segun, are you trying to compute the cumulative sum?

 A = 0;
 for f = [1 4 8 10] 
    b = 2; c = 1; d = 1; n = 4; 
    N = f*b*c*d; 
    M = [4.5 10 20 25];
    Y = (M-N)/M; 
    Z = 100/n; 
    A = A + sum(Y)*Z;
 end
 disp(A)

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Mischa Kim 2014-4-15

Could you be more specific? What are your inputs and what is the expected output?

segun 2014-4-15

Thanks for your help.What I mean is that I run the above program using matlab I got an answer of 40.25 .To crosscheck whether it is correct I did the manipulation manually I got 48.89.This shows something is wrong somewhere.

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Answer 2

Deepana 2014-4-15

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编辑：Deepana 2014-4-15

Can you tel more about what exactly your looking for?

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segun 2014-4-15

Thanks the one that is giving problem is the use of "goto" statement in matlab to make the computer go to a particular line and repeat the whole process down if a condition is not met. Just an example not the complete program as it is long. A= 0; for f = [1 4 8 10] b = 2; c = 1; d = 1; n = 4; N = f*b*c*d; M = [4.5 10 20 25]; Y = (M-N)/M; Z = 100/n; A = A + sum(Y)*Z; end if A<1; go to line (1) elseif A>1; end disp(A)

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