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Apply pandas function to column to create multiple new columns?

... I usually do this using zip: >>> df = pd.DataFrame([[i] for i in range(10)], columns=['num']) >>> df num 0 0 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 >>> def powers(x): >>> retur...
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CSS hack大全 - 创意 - 清泛网 - 专注C/C++及内核技术

...换为其它样式名) 注意点: 网上很多资料中常常!important也作为一个hack手段,其实这是一个误区。!important常常被我们用来更改样式,而不是兼容hack。造成这个误区的原因是IE6在某些情况下不主动识别!important,以至于常...
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30条爆笑的程序员梗 PHP是最好的语言 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术

...讨论。 硬件工程师说:“我可以用随身携带的瑞士军刀车坏的部分拆下来,找出原因,排除故障。” 项目经理说:“根据经营管理学,应该召开会议,根据问题现状写出需求报告,制订计划,编写日程安排,逐步逼近,alpha...
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How to get indices of a sorted array in Python

... you can get the sorted list and indicies by using zip: sorted_items, sorted_inds = zip(*sorted([(i,e) for i,e in enumerate(my_list)], key=itemgetter(1))) – Charles L. Nov 30 '15 at 2:58 ...
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Logstash实践: 分布式系统的日志监控 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...某个时间范围内的全部日志到本地再搜索 tail+grep或者日志下载下来再搜索,可以应付不多的主机和应用不多的部署场景。但对于多机多应用部署就不合适了。这里的多机多应用指的是同一种应用被部署到几台服务器上,每...
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How to convert DOS/Windows newline (CRLF) to Unix newline (LF) in a Bash script?

... If you need to process entire directories and subdirectories, you can use zip: zip -r -ll zipfile.zip somedir/ unzip zipfile.zip This will create a zip archive with line endings changed from CRLF to CR. unzip will then put the converted files back in place (and ask you file by file - you can ans...
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Python loop that also accesses previous and next values

...n probably solve your problem. from itertools import tee, islice, chain, izip def previous_and_next(some_iterable): prevs, items, nexts = tee(some_iterable, 3) prevs = chain([None], prevs) nexts = chain(islice(nexts, 1, None), [None]) return izip(prevs, items, nexts) Then use it ...
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苦逼的年轻人和年薪百万的区别到底在哪里? - 杂谈 - 清泛网 - 专注C/C++及内核技术

...创造的价值更多。” 这些被高薪宠坏了的年轻人,还挺自己当人物。 我特别喜欢 Facebook 办公室。 坐落在西雅图市中心,落地窗,雨城最好的风景全在窗外,桌贴着窗,椅自由搬,色泽利落,空间辽阔。角落里,架子上摆...
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SVN needs-lock 设置强制只读属性(官方资料) - 更多技术 - 清泛网 - 专注...

...\.tiff.$ \.doc.$ \.jar.$ \.odt.$ \.pdf.$ \.ppt.$ \.swf.$ \.vsd.$ \.xls.$ \.zip.[ DISCUZ_CODE_0 ]quot; %TEMP%\tempfile%2`) do ( %SVNLOOK% propget -t %2 %1 svn:needs-lock %%i 1> nul 2> nul if ERRORLEVEL 1 ( echo commit denied, binary files must have property svn:needs-lock >&2 ...
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How to list the files inside a JAR file?

...ain().getCodeSource(); if (src != null) { URL jar = src.getLocation(); ZipInputStream zip = new ZipInputStream(jar.openStream()); while(true) { ZipEntry e = zip.getNextEntry(); if (e == null) break; String name = e.getName(); if (name.startsWith("path/to/your/dir/")) { ...