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Relative frequencies / proportions with dplyr
...)
# am gear n freq
# 1 0 3 15 0.7894737
# 2 0 4 4 0.2105263
# 3 1 4 8 0.6153846
# 4 1 5 5 0.3846154
From the dplyr vignette:
When you group by multiple variables, each summary peels off one level of the grouping. That makes it easy to progressively roll-up a dataset...
req.query and req.param in ExpressJS
...5
arbarb
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Creating a URL in the controller .NET MVC
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GidonGidon
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How to generate keyboard events in Python?
... |
edited Jan 29 '16 at 12:12
Eryk Sun
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answ...
What exactly does stringstream do?
...nd an integer for quantity and the output was 0.
I tried inputting 5.5 and 6 and the output was correct.
4 Answers
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How is performance affected by an unused using directive?
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6 Answers
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Active
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How to set a Timer in Java?
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@Override
public void run() {
// Your database code here
}
}, 2*60*1000);
// Since Java-8
timer.schedule(() -> /* your database code here */, 2*60*1000);
To have the task repeat after the duration you would do:
timer.scheduleAtFixedRate(new TimerTask() {
@Override
public void ru...
Git update submodules recursively
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626
git submodule update --recursive
You will also probably want to use the --init option which ...
Create a submodule repository from a folder and keep its git commit history
...ouxGabLeRoux
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