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How to prevent ifelse() from turning Date objects into numeric objects
... class of the inputs.
library(data.table)
dates <- fifelse(dates == '2011-01-01', dates - 1, dates)
str(dates)
# Date[1:5], format: "2010-12-31" "2011-01-02" "2011-01-03" "2011-01-04" "2011-01-05"
dplyr::if_else
From dplyr 0.5.0 release notes:
[if_else] have stricter semantics that ifelse(): ...
How to reposition Chrome Developer Tools
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answered Apr 5 '12 at 20:20
loisloloislo
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Converting Java objects to JSON with Jackson
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answered Apr 3 '13 at 11:31
Jean LogeartJean Logeart
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Choosing a stand-alone full-text search server: Sphinx or SOLR? [closed]
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answered Aug 19 '09 at 2:32
Mauricio SchefferMauricio Scheffer
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Error while installing json gem 'mkmf.rb can't find header files for ruby'
...ksei Matiushkin
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Cross-reference (named anchor) in markdown
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answered Sep 7 '11 at 14:07
Steve PowellSteve Powell
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Android Webview - Webpage should fit the device screen
...WIDTH here ?
– Paresh Mayani
Jun 8 '11 at 8:09
4
PIC_WIDTH was a constant that I knew beforehand,...
Exposing database IDs - security risk?
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116
There are risks associated with exposing database identifiers. On the other hand, it would be ...
How do I remove files saying “old mode 100755 new mode 100644” from unstaged changes in Git?
...+|-)x <path>.
– CB Bailey
Aug 11 '09 at 6:49
7
If, like me, the mode changes are important,...