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機械学習のデータ前処理における相関関係について大体の目安をメモします。

参考になれば嬉しいです。

※ train = トレーニングデータ

train_corr = train.corr()
print(train_corr)

# -1.0から-0.7・・・強い負の相関
# -0.7から-0.4・・・負の相関
# -0.4から-0.2・・・弱い負の相関
# -0.2から+0.2・・・ほとんど相関がない
# +0.2から+0.4・・・弱い正の相関
# +0.4から+0.7・・・正の相関
# +0.7から+1.0・・・強い正の相関

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