how to save the value of each iteration in a loop for later use in the program?

Question

Aru hazari 2015-4-10

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回答： khan 2015-4-10

在 MATLAB Online 中打开

My code is:

a=input; b=input;

while(1)

c=statement;
 if(x>0) 
s=a-c;
a=altered a;
 else
break;
 end

end

I want each value of s to be known for later use.

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Answer 1

Julia 2015-4-10

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Hi,

use an additional counter and an array/vector for s. s will change its size in every iteration and Matlab will show you a warning. If you have an upper bound for the loop iterations I suggest to use it for preallocation.

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khan 2015-4-10

在 MATLAB Online 中打开

initialize counter_ind =1; before while loop. modify your statement to this

   s(counter_ind) = a-c; 
   counter_ind = counter_ind+1;

Aru hazari 2015-4-10

Thank you Khan but i get an error for mismatch in dimentions when i do that.

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Answer 2

khan 2015-4-10

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may be your data in a-c is bigger than a value. So you have to use according to your data i.e. a and b. i dont know exactly what do you have in a and c. but i think this will save anything.

s{counter_ind} = a-b;