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Efficient way to rotate a list in python
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answered Jan 27 '10 at 20:46
Ignacio Vazquez-AbramsIgnacio Vazquez-Abrams
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Get current date in milliseconds
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answered May 27 '11 at 9:46
PawelPawel
4,63211 gold badge2323 silver badges2626 bronze badges
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How to prevent ifelse() from turning Date objects into numeric objects
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# 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(): the true and false arguments must be the same type. This gives a less surprising return type, and preserves S3...
Converting DateTime format using razor
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dasdom
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answered Jan 13 '11 at 11:07
Darin DimitrovDarin...
Hidden Features of MySQL
...lot of connections.
MySQL binaries for Linux/x86 allow you to have up to 4096 concurrent connections, but self compiled binaries often have less of a limit.
Set table_cache to match the number of your open tables and concurrent connections. Watch the open_tables value and if it is growing quickly...
Apply formula to the entire column
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answered May 7 '15 at 9:42
FredFuryFredFury
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How do I abort the execution of a Python script? [duplicate]
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edited Jul 29 '19 at 13:46
Matthew Strawbridge
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How to see which commits in one branch aren't in the other?
...it checkout devel
git cherry next
... and see output a bit like this:
+ 492508acab7b454eee8b805f8ba906056eede0ff
- 5ceb5a9077ddb9e78b1e8f24bfc70e674c627949
+ b4459544c000f4d51d1ec23f279d9cdb19c1d32b
+ b6ce3b78e938644a293b2dd2a15b2fecb1b54cd9
The commits that begin with + will be the ones that y...
How to modify existing, unpushed commit messages?
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16413
+150
Amendi...
How to return multiple values? [duplicate]
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