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How can I calculate the difference between two dates?
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edited Oct 29 '14 at 6:58
answered Dec 6 '10 at 23:58
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Cleaning `Inf` values from an R dataframe
...nfinite(DT[[.name]])), j = .name,value =NA))))
# user system elapsed
# 0.29 0.02 0.31
data.table is the quickest. Using sapply slows things down noticeably.
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Convert a Scala list to a tuple?
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answered Feb 6 '13 at 11:29
evantillevantill
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How to calculate percentage with a SQL statement
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– Jonathan Leffler
Apr 21 '09 at 1:29
1
The hidden gem for me was you commented out CONVERT.
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Ruby: Calling class method from instance
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@MattConnolly, also using self.class eliminates the need for search/replacing if you happen to rename the class.
– Gu...
Representing Directory & File Structure in Markdown Syntax [closed]
..._layouts
| +-- default.html
| +-- post.html
+-- _posts
| +-- 2007-10-29-why-every-programmer-should-play-nethack.textile
| +-- 2009-04-26-barcamp-boston-4-roundup.textile
+-- _data
| +-- members.yml
+-- _site
+-- index.html
Which is similar to the format tree uses if you select ANSI outp...
Set Locale programmatically
...esourcesLocale()
– Vojtech Pohl
Jan 29 at 22:35
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How to change maven logging level to display only warning and errors?
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edited Nov 29 '16 at 18:18
Josmar
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answered Apr 16 '...
Liquibase lock - reasons?
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answered Sep 29 '13 at 18:20
Adrian BerAdrian Ber
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Comparing two dataframes and getting the differences
...sing pandas ?
– pyd
Jan 31 '18 at 9:29
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