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Is there some way to PUSH data from web server to browser?
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Yes, what you're looking for is COMET http://en.wikipedia.org/wiki/Comet_(programming). Other good Google terms to search for are AJAX-push and reverse-ajax.
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Relative frequencies / proportions with dplyr
...()) %>%
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 ea...
How can I get list of values from dict?
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539
Yes it's the exact same thing in Python 2:
d.values()
In Python 3 (where dict.values returns...
Should the folders in a solution match the namespace?
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Lasse V. KarlsenLasse V. Karlsen
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What's the difference between array_merge and array + array?
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edited Feb 13 at 18:06
Joe DF
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answ...
Scala Doubles, and Precision
...r round a Double? At one point in my code I would like a number like: 1.23456789 to be rounded to 1.23
12 Answers
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How to write character & in android strings.xml
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If using CDATA then be aware that some characters are reserved. © -> © Refer to this article. w3schools.com/html/html_entities....
delete word after or around cursor in VIM
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Pavlo
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answered May 7 '09 at 15:27
WhaledawgWhal...
When to use LinkedList over ArrayList in Java?
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33 Answers
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How to get distinct values for non-key column fields in Laravel?
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113
You should use groupby. In Query Builder you can do it this way:
$users = DB::table('users')
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