Using compressed integer vectors

[vatsalparikh96]

Hello everybody

I have a 2d vector of integers and I would like to apply a delta compression on it. I came across a function called elias_delta.
I have already installed sdsl and imported it to my code using #include <sdsl/coder_elias_delta.hpp>.
I have a vector named vector<vector> v1. How do I apply the compression on this vector?
I am entirely new to this and did not find any examples for it on the example section on Github.