about dataloader's len

[pikeyang]

Hello, I want to know how the 21000 is calculated in mydataset.py?

[fangpin]

by pre-counting the dataset

[ravikiranrao]

@fangpin @pikeyang So, if there are $n$ images, is this equal to $^nC_2$?

[pikeyang]

@ravikiranrao I thing so