为什么学习pandas numpy已经可以帮助我们进行数据的处理了,那么学习pandas的目的是什么呢? numpy能够帮助我们处理的是数值型的数据,当然在数据分析中除了数值型的数据还有好多其他类型的数据(字符串,时间序列),那么pandas就可以帮我们很好的处理除了数值型的其他数据! 什么是pandas? 首先先来认识pandas中的两个常用的类 Series DataFrame Series Series是一种类似与一维数组的对象,由下面两个部分组成: values:一组数据(ndarray
A + B Problem Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 571020 Accepted Submission(s): 181151 Problem Description Calculate A + B. Input Each line will contain two integers A and B. P
The Hardest Problem Ever Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 24039 Accepted: 13143 Description Julius Caesar lived in a time of danger and intrigue. The hardest situation Caesar ever faced was keeping himself alive. In orde