Query on halting single precision support

[zhj]

Hello,

I've been interested in using the single precision mode in lleaves.

I noticed there was an initial implementation in the vectorize branch (link), but development seems to have halted.

Could you share the reasons behind discontinuing this feature?

Thanks for your great work on lleaves.

[Simon Boehm]

No good reason really, I just never had a usecase for it. Double precision is useful because it leads to bitequal results compared to LightGBM (in most cases). I'm happy to take a PR!