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Mysql order by specific ID values
...u can use ORDER BY and FIELD function.
See http://lists.mysql.com/mysql/209784
SELECT * FROM table ORDER BY FIELD(ID,1,5,4,3)
It uses Field() function, Which "Returns the index (position) of str in the str1, str2, str3, ... list. Returns 0 if str is not found" according to the documentation. So a...
How can I setup & run PhantomJS on Ubuntu?
...re
sudo wget https://bitbucket.org/ariya/phantomjs/downloads/phantomjs-1.9.7-linux-x86_64.tar.bz2
sudo tar xjf phantomjs-1.9.7-linux-x86_64.tar.bz2
sudo ln -s /usr/local/share/phantomjs-1.9.7-linux-x86_64/bin/phantomjs /usr/local/share/phantomjs
sudo ln -s /usr/local/share/phantomjs-1.9.7-linux-x86_...
Python requests - print entire http request (raw)?
...-----------START-----------
POST http://stackoverflow.com/
Content-Length: 7
X-Custom: Test
a=1&b=2
Then you can send the actual request with this:
s = requests.Session()
s.send(prepared)
These links are to the latest documentation available, so they might change in content:
Advanced - Pre...
Relative frequencies / proportions with dplyr
...t;%
mutate(freq = n / sum(n))
# 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 p...
git merge: apply changes to code that moved to a different file
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7
This solution only involves basic git commands, unlike editing patches or using patch (which involves also potentially a lot of work), and t...
SPA best practices for authentication and session management
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487
+50
This ques...
What is the correct JSON content type?
...
10478
For JSON text:
application/json
The MIME media type for JSON text is application/json. The def...
What is the purpose of setting a key in data.table?
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127
Minor update: Please refer to the new HTML vignettes as well. This issue highlights the other vi...
Measuring function execution time in R
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edited Aug 24 '14 at 16:57
Pertinax
38322 silver badges1616 bronze badges
answered Jul 23 '13 at 6:00
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Is a `=default` move constructor equivalent to a member-wise move constructor?
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answered Aug 17 '13 at 16:11
Pierre FourgeaudPierre Fourgeaud
13.4k11 gold badge3131 silver badges5555 bronze badges
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