I'm trying to equate each element to an array which correspond to cell element. To explain it more precisely, e.g

```
A = {[1 1 1], [0 0 0 0 0], [1 1],[0 0 0 0 0]};
B = [0 1 0 0];
```

So the thing I want is :

```
A= {[0 0 0],[1 1 1 1 1],[0 0],[0 0 0 0 0]};
```

Possible solution with for loop is :

```
for ii=1:length(A)
A{ii}(:)=B(ii);
end
```

Is there any methode which does not use loop?

Answer:

```
lens = cellfun(@numel, A);
out = mat2cell(repelem(B,lens).*ones(1,sum(lens)),1,lens)
```

**Note:**

`cellfun`

is looping in disguise. But, here`cellfun`

is used to find the number of elements alone. So this could be considered almost vectorised :P`repelem`

function is introduced in R2015a. You may not be able to run this in prior versions. Instead you may create your own custom`repelem`

function. Refer this answer

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