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How to shift a column in Pandas DataFrame
...in a Pandas DataFrame , but I haven't been able to find a method to do it from the documentation without rewriting the whole DF. Does anyone know how to do it?
DataFrame:
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How to wait in bash for several subprocesses to finish and return exit code !=0 when any subprocess
How to wait in a bash script for several subprocesses spawned from that script to finish and return exit code !=0 when any of the subprocesses ends with code !=0 ?
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node.js remove file
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I believe it comes from the POSIX standard. But you'd think they could add a delete alias!
– Nick
Sep 13 '12 at 8:04
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Proper way to make HTML nested list?
...t of the list in which it is nested.
Link to the W3C Wiki on Lists (taken from comment below): HTML Lists Wiki.
Link to the HTML5 W3C ul spec: HTML5 ul. Note that a ul element may contain exactly zero or more li elements. The same applies to HTML5 ol.
The description list (HTML5 dl) is similar, b...
DateTime “null” value
...ed MyNullableDate=date; to set it, MyDate = MyNullableDate.Value; to read from it, and if(MyNullableDate.HasValue) to check if it is null
– satibel
Dec 22 '16 at 11:06
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Spring Boot - parent pom when you already have a parent pom
... <dependency>
<!-- Import dependency management from Spring Boot -->
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>2.1.3.RELEASE</version>
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How do I put variables inside javascript strings?
... I had an issue while using "arguments". When multiple clients passed from the parse, the "str" was mixed up. Any explanation?
– tspentzas
Nov 30 '18 at 8:42
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apt-get for Cygwin?
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You can do this using Cygwin’s setup.exe from Windows command line. Example:
cd C:\cygwin64
setup-x86_64 -q -P wget,tar,qawk,bzip2,subversion,vim
For a more convenient installer, you may want to use the
apt-cyg package manager. Its syntax
similar to apt-get, whic...
Can I define a class name on paragraph using Markdown?
... a workaround:
<DIV class=foo>
Paragraphs here inherit class foo from above.
</div>
The downside of this is that the output code has <p> tags wrapping the <div> lines (both of them, the first because it's not and the second because it doesn't match. No browser fusses...
recursion versus iteration
...mmer does a really good job at it+.
+ I borrowed the sledgehammer analogy from Dijkstra's "Discipline of Programming".
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