a time dependent matlab function

Hi

I'm trying to make a time dependent time function to input as a boundary condition in comsol. I have a vector in matlab and each line is applied in a determinated sampling time in the boundary condition at comsol. For example, when t = 1, the first line is applied to the boundary condition, when t = 2 the second line is applied .....

I tried to make the function, using the time as argument:

function out = myFunction(t)

out = myVector(t)

But when i try to plot the function in comsol, the following error occur:
Incorrect size of returned vector. 1000 elements were expected, but the returned matrix was 1x1.

Anyone can help me?

kind regards

Geovani