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Pandas DataFrame Groupby two columns and get counts
...In [56]: df.groupby(['col5','col2']).size().reset_index().groupby('col2')[[0]].max()
Out[56]:
0
col2
A 3
B 2
C 1
D 3
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Undo git update-index --skip-worktree
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204
Aha! I simply want:
git update-index --no-skip-worktree <file>
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Determining the current foreground application from a background task or service
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104
With regards to "2. How my background application can know what the application currently runni...
How do I import an SQL file using the command line in MySQL?
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answered Jul 16 '13 at 0:48
bansibansi
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System.Threading.Timer in C# it seems to be not working. It runs very fast every 3 second
... watch.Start();
// Long running operation
_timer.Change( Math.Max( 0, TIME_INTERVAL_IN_MILLISECONDS - watch.ElapsedMilliseconds ), Timeout.Infinite );
}
I strongly encourage anyone doing .NET and is using the CLR who hasn't read Jeffrey Richter's book - CLR via C#, to read is as soon as ...
jQuery UI DatePicker to show month year only
...my app. I want to know if I can use it to display the month and year (May 2010) and not the calendar?
26 Answers
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Generate random numbers uniformly over an entire range
... std::uniform_int_distribution. Here's an example:
const int range_from = 0;
const int range_to = 10;
std::random_device rand_dev;
std::mt19937 generator(rand_dev());
std::uniform_int_distribution<int> distr(range_from, range_to);
std::cout <<...
How to check if APK is signed or “debug build”?
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10 Answers
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Random / noise functions for GLSL
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+100
For very simple pseudorandom-looking stuff, I use this oneliner that I found on the internet somewhere:
float rand(vec2 co){
ret...
PDO support for multiple queries (PDO_MYSQL, PDO_MYSQLND)
...s of statements emulation
$db->setAttribute(PDO::ATTR_EMULATE_PREPARES, 0);
$sql = "
DELETE FROM car;
INSERT INTO car(name, type) VALUES ('car1', 'coupe');
INSERT INTO car(name, type) VALUES ('car2', 'coupe');
";
$db->exec($sql);
Using statements
$db = new PDO("mysql:host=localhost;dbname...