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发布时间:2023-05-19 14:59:19
库 没有: pip show matplotlib 安装pandas pip show pandas pip install pandas线性回归:##从scikit-learn导入线性模型的线性回归算法from sklearn import linear_model# 把序列变矩.........【阅读全文】
发布时间:2023-05-14 19:51:12
和把大象放入冰箱一样,需要三步:1: 安装numpy (如果本来没装的话) pip install -u numpy 检查一下: $ pip show numpy2; 装 spicy pip install -u spicy 检查一下: $pip show scipy3: 装 scikit-learn pip .........
发布时间:2023-05-11 15:23:47
默认。python3 hello_world.py位置:/usr/local/bin/python3......
发布时间:2022-01-05 21:08:50
#/usr/bin/python# -*- coding: utf-8 -*-print('hello world.')#-----------------------------mystr = "\n" # a newline charactermystr = r"\n" # two characters, \ and n#-----------------------------mystr = "jon 'maddog' orwant" # literal sing.........
发布时间:2021-12-15 15:24:05
1: 分组,再选出每组最大值: article ()asfromgroupbyorderby; --------- ------- | article | price | --------- ------- | 0001 | 3.99 || 0002 | 10.99 || 0003 | 1.69 | | 0004 | 19.95 | --------- ------- ......