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Relative frequencies / proportions with dplyr
...ep with groups.
The outcome of the peeling is of course dependent of the order of the grouping variables in the group_by call. You may wish to do a subsequent group_by(am), to make your code more explicit.
For rounding and prettification, please refer to the nice answer by @Tyler Rinker.
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Most used parts of Boost [closed]
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My faves are, in no particular order:
regex
filesystem
thread
lexical_cast
program_options (just brilliant!)
test (for all my unit testing needs).
String algorithms
String tokenizer
format (type-safe printf style string formatting)
smart ptrs
Boost was...
Error in plot.new() : figure margins too large in R
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This sometimes happen in RStudio. In order to solve it you can attempt to plot to an external window (Windows-only):
windows() ## create window to plot your file
## ... your plotting code here ...
dev.off()
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Make the first character Uppercase in CSS
...ferent transform instead (although it doesn't really matter). Note that in order for :first-letter to work your a elements need to be block containers (which can be display: block, display: inline-block, or any of a variety of other combinations of one or more properties):
a.m_title {
display: ...
Drop all duplicate rows across multiple columns in Python Pandas
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How to remove all white space from the beginning or end of a string?
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What does #defining WIN32_LEAN_AND_MEAN exclude exactly?
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SQL JOIN and different types of JOINs
... a.actor_id -- JOIN predicate with the outer query!
GROUP BY f.film_id
ORDER BY revenue DESC
LIMIT 5
) AS f
ON true
It will find the TOP 5 revenue producing films per actor. Every time you need a TOP-N-per-something query, LATERAL JOIN will be your friend. If you're a SQL Server person, then...
Fatal error: Class 'ZipArchive' not found in
...eed to compile PHP with zip support. The manual says the following:
In order to use these functions you must compile PHP with zip support by using the --enable-zip configure option.
It's not enough to simply install the correct extensions on the server. Have a look at the installation instru...
How to create a HTTP server in Android? [closed]
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