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How can I strip the whitespace from Pandas DataFrame headers?

... If you use CSV format to export from Excel and read as Pandas DataFrame, you can specify: skipinitialspace=True when calling pd.read_csv. From the documentation: skipinitialspace : bool, default False Skip spaces after delimite...
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Split delimited strings in a column and insert as new rows [duplicate]

... R. It assumes we're starting with a data.frame named "mydf". It uses read.csv to read in the second column as a separate data.frame, which we combine with the first column from your source data. Finally, you use reshape to convert the data into a long form. temp <- data.frame(Ind = mydf$V1, ...
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iPhone App 开发第一步:从零到真机调试HelloWorld - 更多技术 - 清泛网 - ...

...,否则升级后坏死,得重装。升级采用自己下载Combo升级文件(如MacOSXUpdCombo10.6.7.dmg);(4)升级完成,再用darwin_snow_legacy.iso已无法引导系统,换成Rebel EFI.iso。至此大概完成Mac OSX系统的安装。下面是要用到的各种文件,此处不...
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菜单的背景颜色 - C/C++ - 清泛网 - 专注C/C++及内核技术

...nu->GetSubMenu(0);//获得子菜单(如果有)0表示索引,对应“文件”菜单 for(int i=0;i<3;i++) { CBitmap bmp; bmp.LoadBitmap(IDB_BITMAP1+i); pSubMenu->SetMenuItemBitmaps(i,MF_BYPOSITION,&bmp,&bmp); bmp.Detach(); } CBitmap bmp; CBrush m_BKBrush; bmp.Load...
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Unicode与UTF-8互转(C语言实现) - C/C++ - 清泛网 - 专注C/C++及内核技术

...数字可以被解释成不同的符 号. 因此, 要想打开一个文本文件, 就必须知道它的编码方式, 否则用错误的编码方式解 读, 就会出现乱码. 为什么电子邮件常常出现乱码?就是因为发信人和收信人使用的编码 方式不一样. 可以想象...
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Export specific rows from a PostgreSQL table as INSERT SQL script

... COPY (SELECT * FROM nyummy.cimory WHERE city = 'tokio') TO '/path/to/file.csv'; Import the same to another table of the same structure anywhere with: COPY other_tbl FROM '/path/to/file.csv'; COPY writes and read files local to the server, unlike client programs like pg_dump or psql which read ...
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开源邮件传输代理软件 -- Postfix 介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术

...ix。Postfix支持/var[/spool]/mail、/etc/aliases、 NIS、和 ~/.forward 文件。 4. 更健壮: postfix被设计成在重负荷之下仍然可以正常工作。当系统运行超出了可用的内存或磁盘空间时,postfix会自动减少运行进程的数目。当处理的邮件数目...
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乐高机器人®组件 · App Inventor 2 中文网

...件 无 方法 DeleteFile 删除文件(fileName) 删除机器人上的文件。 DownloadFile 下载文件(source,destination) 将文件下载到机器人。 GetBatteryLevel 获取电池电量() 获取机器人的电池电量。返回电压...
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libcurl的使用总结 - C/C++ - 清泛网 - 专注C/C++及内核技术

...结束后,可以查看目录结构。 curl/include/curl : 头文件目录 (一般只要包含curl.h即可) curl/lib/.lib/ : lib文件目录(有libcurl.a和libcurl.so,注意,如果这两个文件在同一目录下,-lcurl默认是链接.so滴) 二.函数简...
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How do I pass multiple parameters into a function in PowerShell?

... [ValidateScript({ (Get-Item $_ | select -Expand Extension) -eq ".csv" })] [string] $Path ) } In this example, we are assured not only that $Path exists, but that it is a file, (as opposed to a directory) and has a .csv extension. ($_ refers to the parameter, when inside your...