## How to save, for loop

on 14 Dec 2012

### Pedro Villena (view profile)

Example:

for i=1:n X=DATA1(i,1); Y=DATA2{1,i}; Z=X-Y;

end

what I want is that it saves the data to Z, summing them, so, for i=1 , Z=[1 2 3 4 5], for i=2 Z becomes Z=[1 2 3 4 5 6 7] etc.

so i need to do something with Z but dont know what. currently it only shows the result of the last i.

Image Analyst

### Image Analyst (view profile)

on 14 Dec 2012

Do you really have X as a numerical array (double, etc.) and Y as a cell array???

Hello kity

### Hello kity (view profile)

on 14 Dec 2012

yes x= column full of values (nummerical array) and Y cells , with each cell with diff lengths

## Products

### Pedro Villena (view profile)

on 14 Dec 2012
Edited by Pedro Villena

### Pedro Villena (view profile)

on 14 Dec 2012
``` for i=1:n,
X = DATA1(i,1); %% DATA1 is an array
Y = DATA2{i,1}; %% DATA2 is a cell
Z(i,:) = X-Y;
end
save Z```

or

``` Z = DATA1 + cell2mat(DATA2);
save Z```

Hello kity

### Hello kity (view profile)

on 14 Dec 2012

the first one works if both X and Y are matrix ( ()) but if Y is cell array {} then it gives trouble. Somehow I need to convert Y to matrix then put it in the equation.

I look into the second tip

thank you

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