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查询Tags标签： countries，共有 4条记录-
SQL 595 Big Countries
Table: World +-------------+---------+ | Column Name | Type | +-------------+---------+ | name | varchar | | continent | varchar | | area | int | | population | int | | gdp | int | +-------------+---------+name …
2022/9/13 2:24:25 人评论 次浏览 -
30天英语口语背诵材料：PASSAGE 9 Globalization
In the years after World War Il, the world greatly changed. Much of this was due to new technology. For instance, the jet was developed. This increased the speed that people could travel. There were also advances in telecommunications. Computers and t…
2022/3/3 23:18:40 人评论 次浏览 -
Python数据分析：pandas数据操作和分析案例
# Python数据分析：pandas数据操作和分析案例 ###### 项目介绍： * [ https://www.kaggle.com/openfoodfacts/world-food-facts ](https://www.kaggle.com/openfoodfacts/world-food-facts) ###### 项目任务： * 统计各个国家食物中的食品添加剂种类个数 ```code impor…
2021/7/1 22:24:21 人评论 次浏览 -
数据挖掘算法原理与实践：数据预处理
第1关：数据集介绍 import pandas as pd f500 = pd.read_csv(f500.csv,index_col=0) f500.index.name = None# 请在此添加代码，分别打印f500的类型和形状大小 #********** Begin **********# print(type(f500)) print(f500.shape) #********** End **********#第5关：值统…
2021/4/12 12:25:10 人评论 次浏览
