example data not provide

[liyukun-mathmagic]

thanks a lot for this work!
I wanna try your code but got

with open(path, "r") as fid:

FileNotFoundError: [Errno 2] No such file or directory: 'examples/glt/examples/glt/sparse/images.txt'

[liyukun-mathmagic]

what data should I prepare for images and sparse