Unequal size of perturbated size

[XinyeZhao]

Hi scgen team,

When I used the perturbation function, I found that the size of the predicted data is not consistent with the ground truth data, for example, the stim1 data I used had 3394 cells, while the perturbated output only has 3333 cells, and I traced back in the source code and I found the function named "balancer". Can you tell me what's the purpose of using the balance function?

Thanks