大约有 3,000 项符合查询结果(耗时:0.0173秒) [XML]

https://stackoverflow.com/ques... 

Difference between two dates in Python

... Try this: data=pd.read_csv('C:\Users\Desktop\Data Exploration.csv') data.head(5) first=data['1st Gift'] last=data['Last Gift'] maxi=data['Largest Gift'] l_1=np.mean(first)-3*np.std(first) u_1=np.mean(first)+3*np.std(first) m=np.abs(data['1st Gift...
https://www.tsingfun.com/it/bigdata_ai/335.html 

MongoDB副本集详解 优于以往的主从模式 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...B副本集详解 优于以往的主从模式因为MongoDB使用内存映射文件,所以必须使用64位版本。官方下载地址如下:http: www mongodb org downloads实验环境使用的Mongodb版本为mon 因为MongoDB使用内存映射文件,所以必须使用64位版本。 官方下载...
https://www.tsingfun.com/it/cpp/1364.html 

windows下捕获dump之Google breakpad_client的理解 - C/C++ - 清泛网 - 专注C/C++及内核技术

...client.gyp" 需要先安装python,使用2.7.4版本python正常生成sln文件,2.4.3、3.3.2版本均生成失败。搜索发现,\src\client\windows\build\common.gypi文件下有 'python_ver%': '2.5',,不确定是否要依据它来确定python使用的版本。因为我是在可以编译chr...
https://www.tsingfun.com/it/cpp/google_mock.html 

google mock分享(全网最全最好的gmock文档,没有之一) - C/C++ - 清泛网 ...

...个模块用于根据Query中的Segment接合业务处理的。Rank.h 头文件 #ifndef RANK_H_ #define RANK_H_ #include "IAPIProviderInterface.h" namespace seamless { class Rank { public: virtual ~Rank() {} public: void processQuery(IAPIProviderInterface* ...
https://stackoverflow.com/ques... 

Getting the count of unique values in a column in bash

...1 w 1 column 1: d 3 r 2 b 1 g 1 m 1 z 1 column 2: c 4 a 3 e 2 .csv input If your input files are .csv, change /\s+/ to /,/ Obfuscation In an ugly contest, Perl is particularly well equipped. This one-liner does the same: perl -lane 'for $i (0..$#F){$g[$i]{$F[$i]}++};END{for $j (0..$#...
https://www.tsingfun.com/it/os... 

动态追踪(Dynamic Tracing)技术漫谈 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...因此经常需要在线部署 C 编译器工具链和 Linux 内核的头文件。出于这些原因,SystemTap 脚本的启动相比 DTrace 要慢得多,和 JVM 的启动时间倒有几分类似。虽然存在这些缺点[3],但总的来说,SystemTap 还是一个非常成熟的动态追踪...
https://stackoverflow.com/ques... 

How to redirect output with subprocess in Python?

...mmand line directly from python. import subprocess32 as sub with open("A.csv","a") as f: f.flush() sub.Popen(["cat","temp.csv"],stdout=f) share | improve this answer | ...
https://www.tsingfun.com/it/cpp/478.html 

SSMS插件开发指南 - C/C++ - 清泛网 - 专注C/C++及内核技术

...理和VS插件的原理略有不同,VS直接加载Addins目录中.Addin文件,指定载入哪个dll;而SSMS读取注册表中Addins子项目(HKEY_CURRENT_USER而不是HKEY_LOCAL_MACHINE),然后加载注册表已注册的COM组件(由于开启“COM互操作注册”,VS编译时已经...
https://stackoverflow.com/ques... 

adding noise to a signal in python

...,2) # in your case you need to replace this with # clean_signal = pd.read_csv("your_data.csv") clean_signal = pd.DataFrame([[1,2],[3,4]], columns=list('AB'), dtype=float) print(clean_signal) """ print output: A B 0 1.0 2.0 1 3.0 4.0 """ import numpy as np mu, sigma = 0, 0.1 # crea...
https://stackoverflow.com/ques... 

A simple explanation of Naive Bayes Classification

...exactly answers that question. Just create a file called named new_dataset.csv and paste the following content. Age,Income,Student,Creadit_Rating,Buys_Computer <=30,high,no,fair,no <=30,high,no,excellent,no 31-40,high,no,fair,yes >40,medium,no,fair,yes >40,low,yes,fair,yes >40,low,yes...