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Simultaneously merge multiple data.frames in a list
... = 1:3, stringsAsFactors=FALSE)
y <- data.frame(i = c("b","c","d"), k = 4:6, stringsAsFactors=FALSE)
z <- data.frame(i = c("c","d","a"), l = 7:9, stringsAsFactors=FALSE)
Update June 2018: I divided the answer in three sections representing three different ways to perform the merge. You proba...
Zip lists in Python
...amine the length of the first element:
In [3]: result = zip(a, b, c)
In [4]: len(result[0])
Out[4]: 3
Of course, this won't work if the lists were empty to start with.
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pandas: How do I split text in a column into multiple rows?
...
This splits the Seatblocks by space and gives each its own row.
In [43]: df
Out[43]:
CustNum CustomerName ItemQty Item Seatblocks ItemExt
0 32363 McCartney, Paul 3 F04 2:218:10:4,6 60
1 31316 Lennon, John 25 F01 1:13:36:...
How do I trim a file extension from a String in Java?
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moment.js 24h format
How do I display my time in 24h format instead of 12?
8 Answers
8
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Can a variable number of arguments be passed to a function?
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460
Yes. You can use *args as a non-keyword argument. You will then be able to pass any number of ...
SEH stack 结构探索（1）--- 从 SEH 链的最底层（线程第1个SEH结构）说起 -...
... push ecx
772e9d00 51 push ecx
772e9d01 8d45f8 lea eax,[ebp-8]
772e9d04 50 push eax
772e9d05 e8d5ffffff call ntdll32!RtlInitializeExceptionChain (772e9cdf)
772e9d0a ff750c push dword ptr [ebp+0Ch]
772e9d0d ff75...
Is there an equivalent of CSS max-width that works in HTML emails?
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edited Oct 23 '14 at 15:40
answered Jun 30 '14 at 22:32
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VIM Ctrl-V Conflict with Windows Paste
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146
From the VIM documentation:
Since CTRLV is used to paste, you can't use it to start a block...
Sample settings.xml for maven
...iles can also be activated by JDK
| version prefix, where a value of '1.4' might activate a profile when the
| build is executed on a JDK version of '1.4.2_07'. Finally, the list of
| active profiles can be specified directly from the command line.
|
| NOTE: For profiles defined in th...