so, the name of this function  is kinda ambiguous,  where is the meaning of ramdom of this function itself?
and where is the meaning of “subset” this function itself?
e.g.
if  idx = [1,2,3,4,5]
torch.utils.data.sampler.SubsetRandomSampler(idx, 100)
what’s sequeece of after call this function?
it looks like  idx =[4,5,3,1,2], or [3,2,1,5,4] ramdomly?