i want to fill zeros inbetween vector elements

i have two vectors i want to fill zeros inbetween the first one elements according to the values in the second one

for emaple

v1=[687

345

7584

4513]

v2=[0

40

120

360] so i want to fill 39 zeroes between 687 and 345 and 79 zeros between 345 and 7584 and 239 zeros between 7584 and 4513 and so on for 80000 samples

Answer 1

[Bjorn Gustavsson]

Looks like you should turn to matlab's sparse arrays. Something like this should be a shortest-ish code-snippet to do what you need:

v2(1) = 1; % To shift the index of your first element, maybe you should shift all by one...
v_zero_filled = sparse(ones(size(v1)),v2,v1));

Maybe you want a non-sparse array:

v_zero_filled = full(v_zero_filled);

HTH