predictions results do not match original lightgbm

[Yang-HangWA]

#94 I installed treelite by compiling the latest code and the predictions results have a big difference between treelite model and original model. I have confused for a few of days.

[hcho3]

I will take a look. One thing you should keep in mind: Treelite uses 32-bit floating point, so some numbers in your example may be too big.

[Yang-HangWA]

@hcho3 Thanks for your help. I try to remove the previous two feature that seems too big and retrain the model, but the results still not match.

[hcho3]

Will look at this issue soon.

[hcho3]

Indeed, it has to do with LightGBM using 64-bit floating-point. I'm planning to add support for multiple types so that prediction is reproducible. Stay tuned.