當數(shù)據(jù)特征較多時，基本有兩種方法：1 PCA降維2 Feature Selection(特征選擇) PCA降維 <1> PCA降維的思路：(假設(shè)從2維降到1維) 維度紅：每個...
IP屬地：河北
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Hope for the best，but prepare the worst
The proverb --“Hope for the best ,but prepare the worst”-- means that life is full of b...
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2020-12-09
# -*- coding: utf-8 -*- #2.3.2 import numpy as np #生成一個向量 print(np.random.randint(0,10,...
