Insert zeros in a vector

Let's assume my vector is

A = [1 2 3 7 9 10 45 93 122 150]';

I want to put zeros in between these numbers.

A = [1 2 3 0 0 0 7 0 9 10 0 0 .....]';

Answer 1

[Andrei Bobrov]

One of ways:

A = [1 2 3 7 9 10 45 93 122 150]'

ii = randi(3,numel(A),1);
t = cumsum(ii) < numel(A);
ii = ii(t);
z = arrayfun(@(x)zeros(x,1),ii(1:end-1),'un',0);
C = mat2cell(A(1:sum(ii)),ii,1);
out = [C';[z',{[]}]];
out = cat(1,out{:});

[Deepti Ranjan Majhi]

Thank you for your reply. But, I want a vector of length 150X1.

[Andrei Bobrov]

Please!

[Deepti Ranjan Majhi]

Thank you for reply. I sort out the problem.

Answer 2

[Jan]

A = [1 2 3 7 9 10 45 93 122 150]';

B     = zeros(150, 1);
Index = [true(1, numel(A)), false(1, numel(B) - numel(A)];
Index = Index(randperm(numel(Index));
B(Index) = A;

Now the result is filled at random places by zeros such that the total length is 150.

[EDITED] Easier:

A        = [1 2 3 7 9 10 45 93 122 150]';
B        = zeros(150, 1);
Index    = randperm(numel(B), numel(A));
B(Index) = A;