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Combine Date and Time columns using python pandas
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When I 'pd.read_excel' an Excel column that Excel identifies as "Time," pandas also reads it as "Time" automatically without any parsing argument required. Thanks for this solution. +1
– Saeed
Oct 14 '1...
What's so wrong about using GC.Collect()?
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So how about when you are using COM objects like MS Word or MS Excel from .NET? Without calling GC.Collect after releasing the COM objects we have found that the Word or Excel application instances still exist.
In fact the code we use is:
Utils.ReleaseCOMObject(objExcel)
' Call the...
Generate random numbers uniformly over an entire range
...values tend to correlate, and the sequence is deterministic). Knuth has an excellent (if hard-to-read) treatise on random number generators, and I recently found LFSR to be excellent and darn simple to implement, given its properties are OK for you.
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The Use of Multiple JFrames: Good or Bad Practice? [closed]
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@ryvantage "Should (Excel) be MDI?" Good question. I feel it should be offered to the user both ways (certainly not only in MDI form). For example: 1) I currently use TextPad, and by configuration at my choice, it opens separate instances, t...
LOGFONT 和 CFont 区别 - C/C++ - 清泛网 - 专注C/C++及内核技术
...OGFONT和CFont 本质上是相同的，前者是存储字体相关数据的一个结构体，后者是封装LOGFONT的一个类，用于创建使用字体。创建字体：CFont ...LOGFONT 和 CFont 本质上是相同的，前者是存储字体相关数据的一个结构体，后者是封装LOGFON...
Android RoundRectShape圆角矩形使用详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
... Specifies an outer (round)rect and an optional inner (round)rect.// 指定一个外部（圆角）矩形 和 一个 可选的 内部（圆角）矩形。
Parameters:
outerRadii
An array of 8 radius values, for the outer roundrect. The first two floats are for the top-left corner (remaining...
BAT会一直霸占中国互联网江湖吗？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...中国互联网江湖吗？每个个体都有自我的特征和特性，每一个个体都有自我的生命周期。近日一些图解BAT圈地分布图在网上广为流传，并且都注明是不完全统计。没错，你我能想得到的中型互联网企业都背靠着这三棵大树或其中...
推动“一带一路”IT产业怎么走 - 资讯 - 清泛网 - 专注C/C++及内核技术
...”沿线国家和地区对互联网IT产业有需求。“斯里兰卡是一个非常传统的国家，这是斯里兰卡首次与IT界举办活动，斯方十分重视和中国的合作。”斯里兰卡驻华商务参赞汝婉缇(RuwanthiAriyaratne)说。
汝婉缇指出，“一带一路”能...
Tokumx 副本集（集群）全攻略 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...并把里面的操作在secondary执行一遍。但是oplog也是mongodb的一个集合，保存在local.oplog.rs里，但是这个oplog是一个capped collection也就是固定大小的集合，新数据加入超过集合的大小会覆盖。所以这里需要注意，跨IDC的复制要设置合适...
启动 Eclipse 弹出“Failed to load the JNI shared library jvm.dll” - ...
...策：（1）重新安装jre或者jdk并配置好环境变量。（2）copy一个jvm.dll放在该目录下。原因2：eclipse的...原因1：给定目录下jvm.dll不存在。
对策：（1）重新安装jre或者jdk并配置好环境变量。（2）copy一个jvm.dll放在该目录下。
原...