add_features_from not functional

[Jingyu-Fan]

Thank you for your time!

Environment info

Operating System: linux

CPU/GPU model: CPU

C++/Python/R version:Python

LightGBM version or commit hash:2.2.3

Error message

AttributeError: 'Dataset' object has no attribute 'add_features_from'

Reproducible examples

import numpy as np
import lightgbm as lgb

X1 = np.random.random((1000, 1))
X2 = np.random.random((1000, 1))

d1 = lgb.Dataset(X1).construct()
d2 = lgb.Dataset(X2).construct()
d1.add_features_from(d2)

[StrikerRUS]

Hi @Jingyu-Fan !
Unfortunately, add_features_from is presented only in master branch now. You can either build the package from sources or wait for #2138.

[Jingyu-Fan]

It seems that if lightgbm is installed through "pip install lightgbm", the problem would occur, while building from source would resolve the problem

[Jingyu-Fan]

Hi @Jingyu-Fan !
Unfortunately, add_features_from is presented only in master branch now. You can either build the package from sources or wait for #2138.

Thank you. Just found out the problem.