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Extract a dplyr tbl column as a vector
...
iris2 %>% pull('Species')
iris2 %>% pull(Species)
iris2 %>% pull(5)
Resulting in...
[1] 21.0 21.0 22.8 21.4 18.7 18.1 14.3 24.4 22.8 19.2 17.8 16.4 17.3 15.2 10.4 10.4 14.7 32.4 30.4 33.9 21.5 15.5 15.2 13.3 19.2 27.3 26.0 30.4 15.8 19.7 15.0 21.4
And it also works fine with data fra...
Controlling mouse with Python
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Twistios_Player
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answered Jul 25 '09 at 7:57
Jeffrey KempJeffrey Kemp
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How to get last key in an array?
...do the trick :
$array = array(
'first' => 123,
'second' => 456,
'last' => 789,
);
end($array); // move the internal pointer to the end of the array
$key = key($array); // fetches the key of the element pointed to by the internal pointer
var_dump($key);
Will output...
Force line-buffering of stdout when piping to tee
... Greg Dubicki
3,19222 gold badges3636 silver badges5454 bronze badges
answered Jul 5 '12 at 2:50
Paused until further notice.Paused until further notice...
The forked VM terminated without saying properly goodbye. VM crash or System.exit called
... problem and solved by adding:
<argLine>-Xmx1024m -XX:MaxPermSize=256m</argLine>
The whole plugin element is:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<forkCou...
How do you run your own code alongside Tkinter's event loop?
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5 Answers
5
Active
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Updating Bootstrap to version 3 - what do I have to do?
...otstrap 3.x Buttons
Change navbar color in Twitter Bootstrap 3
remove html5shiv cause TB drops support for IE7 and Firefox 3.x add html5shiv.js to add support of HTML5 elements to IE8
add respond.js (https://github.com/scottjehl/Respond) for media query support in IE. NOTE this won't work with CDN,...
How to add a vertical Separator?
... |
edited Nov 16 '14 at 15:22
Chnossos
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answered...
How to escape single quotes in MySQL
...s deprecated.
– hd1
May 23 '13 at 9:58
That is the right answer, although these days the best option is to use one of ...
How to get start and end of day in Javascript?
How to get start ( 00:00:00 ) and end ( 23:59:59 ) of today in timestamp ( GMT )? Computer use a local time.
7 Answers
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