about dataset dir

Thanks to everyone for your contributions. This is the first time I've built SlowFast

I want to train and test X3D, but I cannot understand that how to configure the data set (train\val\test)

ok, also cannot understand 'DATA.PATH_TO_DATA_DIR path_to_your_dataset'

Could anyone can help me for giving a example of command or configuration?

Thank your kindness again!

best wishes!