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Can dplyr package be used for conditional mutating?
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220
Use ifelse
df %>%
mutate(g = ifelse(a == 2 | a == 5 | a == 7 | (a == 1 & b == 4), 2,
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Android 4.2: back stack behaviour with nested fragments
...? Even getFragments is not public method? stackoverflow.com/a/42572412/4729203
– wonsuc
Apr 24 '17 at 9:09
It worked ...
Is it possible to execute code once before all tests run?
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answered Mar 4 '10 at 20:47
Mark SeemannMark Seemann
203k3939 gold badges377377 silver badges649649 bronze badges
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Should I index a bit field in SQL Server?
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answered Oct 23 '08 at 20:41
Geoff CoxGeoff Cox
5,90422 gold badges2424 silver badges3030 bronze badges
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Setting environment variables on OS X
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answered Sep 25 '08 at 20:08
tim_yatestim_yates
149k2222 gold badges302302 silver badges311311 bronze badges
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Change the URL in the browser without loading the new page using JavaScript
...sal to make search engines see hashes: googlewebmastercentral.blogspot.com/2009/10/…
– LKM
Oct 8 '09 at 21:03
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Remove textarea inner shadow on Mobile Safari (iPhone)
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answered Jun 20 '10 at 5:49
LyonLyon
6,9541010 gold badges2727 silver badges4545 bronze badges
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How do I bind Twitter Bootstrap tooltips to dynamically created elements?
... the specified targets.
– Terry
Jul 20 '12 at 14:20
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What I don't like about this solution is th...
Start/Stop and Restart Jenkins service on Windows
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Open Console/Command line --> Go to your Jenkins installation directory. Execute the follow...
How to turn on WCF tracing?
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20
Go to your Microsoft SDKs directory. A path like this:
C:\Program Files (x86)\Microsoft SDKs\W...