CODEWITHSUNDEEP
matlab
user2663126
user2663126

Reputation: 101

How to make a for loop

I have a big code but i want to make a for loop to execute the code.My code is below:

A = zeros(1, 60) ;
C = A ;
D = A ;
F = A ;
.......


  if( sum(B) == 100 )
    A= A(1) + 1;

  elseif( sum(B) == (99) )
        C(1) = C(1) + 1;
  elseif( sum(B) == (98) )
        D(1) = D(1) + 1;
  elseif( sum(B) == (97) )
        E(1) = E(1) + 1;    
.........
end
O1=A;
O2=C;
O3=D;
O4=F;
O=[O1,O2,O3,O4]

I need to check upto sum(B)==1 so its looks worse if i write the whole condition using elseif so i want to use a for loop to execute this condition.But i cant do this.

Matlab experts needs your valuable sugggestion and help.

Upvotes: 0

Views: 123

Answers (2)

Luis Mendo
Luis Mendo

Reputation: 112769

If would be better to replace A, B, C... by a cell array: X{1}, X{2}, X{3},...:

X = cell(1,100); % change "100" as needed
[X{:}] = deal(zeros(1,60)); % initialize each cell as needed
X{101-sum(B)}(1) = X{101-sum(B)}(1) + 1; % or whatever operation is required here

If all your former A, B, C, ... have the same size, you can use an array instead of a cell array.

Upvotes: 2

am304
am304

Reputation: 13886

How about something like:

A = zeros(100,60);

for k=100:-1:1
    if sum(B) == k
       A(101-k,1) = A(101-k,1) + 1;
    end
end

Note that it's never a good idea to do equality tests on floating point numbers though, better to compare the difference to a small tolerance value.

Upvotes: 2

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