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How to use Greek symbols in ggplot2?
... the tick marks can be achieved as follows
require(ggplot2);
data(tips);
p0 = qplot(sex, data = tips, geom = 'bar');
p1 = p0 + scale_x_discrete(labels = c('Female' = expression(alpha),
'Male' = expression(beta)));
print(p1);
For complete documentation on th...
When to use a key/value store such as Redis instead/along side of a SQL database?
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102
I can't seem to figure out when it's time to use it in an application.
I would recommend y...
What is the difference D3 datum vs. data?
...ijosephmisiti
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What are the Ruby Gotchas a newbie should be warned about? [closed]
...s.
To denote floating point numbers, one must follow with a zero digit (99.0) or an explicit conversion (99.to_f). It is insufficient to append a dot (99.), because numbers are susceptible to method syntax.
Boolean evaluation of non-boolean data is strict: 0, "" and [] are all evaluated to true. In ...
How to write a large buffer into a binary file in C++, fast?
...mounts of data onto my SSD(solid state drive). And by huge amounts I mean 80GB.
12 Answers
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How to declare std::unique_ptr and what is the use of it?
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edited Jun 3 '13 at 10:24
answered Jun 3 '13 at 10:18
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Why isn't `int pow(int base, int exponent)` in the standard C++ libraries?
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+50
As of C++11, special cases were added to the suite of power functions (and others). C++11 [c.math] /11 states, after listing all the f...
Setting Curl's Timeout in PHP
...ONNECTTIMEOUT - The number of seconds to wait while trying to connect. Use 0 to wait indefinitely.
CURLOPT_TIMEOUT - The maximum number of seconds to allow cURL functions to execute.
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 0);
curl_setopt($ch, CURLOPT_TIMEOUT, 400); //timeout in seconds
also do...
Generic type parameter naming convention for Java (with multiple chars)?
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edited Jun 20 at 9:12
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111 silver badge
answered May 24 '10 at 23:06
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Fastest way to extract frames using ffmpeg?
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160
If the JPEG encoding step is too performance intensive, you could always store the frames uncomp...