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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(): ...
Unmount the directory which is mounted by sshfs in Mac [closed]
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answered Apr 7 '14 at 19:11
palswimpalswim
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Choosing a stand-alone full-text search server: Sphinx or SOLR? [closed]
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Community♦
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answered Aug 19 '09 at 2:32
Mauricio SchefferMauricio Scheffer
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How can I list all collections in the MongoDB shell?
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1178
You can do...
JavaScript (shell):
db.getCollectionNames()
Node.js:
db.listCollections()
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Unzip files programmatically in .net
...Chris Conway
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3
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Nested Models in Backbone.js, how to approach
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answered Nov 23 '11 at 7:46
Eric HuEric Hu
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Is there a way to collapse all code blocks in Eclipse?
...hssPly76
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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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Use of Finalize/Dispose method in C#
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thecoopthecoop
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26
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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 ...