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Combine Date and Time columns using python pandas
...you to apply to_datetime:
In [11]: df['Date'] + ' ' + df['Time']
Out[11]:
0 01-06-2013 23:00:00
1 02-06-2013 01:00:00
2 02-06-2013 21:00:00
3 02-06-2013 22:00:00
4 02-06-2013 23:00:00
5 03-06-2013 01:00:00
6 03-06-2013 21:00:00
7 03-06-2013 22:00:00
8 03-06-2013 23:00:00
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OSGi, Java Modularity and Jigsaw
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100
First understand that Jigsaw's primary use case is to modularise the JRE itself. As a secondary...
Is async HttpClient from .Net 4.5 a bad choice for intensive load applications?
...estion, I recently created some new ones involving much fewer HTTP calls (5000 compared to 1 million previously) but on requests that took much longer to execute (500 milliseconds compared to around 1 millisecond previously). Both tester applications, the synchronously multithreaded one (based on Ht...
How can I hash a password in Java?
... * @param cost the exponential computational cost of hashing a password, 0 to 30
*/
public PasswordAuthentication(int cost)
{
iterations(cost); /* Validate cost */
this.cost = cost;
this.random = new SecureRandom();
}
private static int iterations(int cost)
{
if ((cos...
Why does my application spend 24% of its life doing a null check?
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180
The tree is massive
By far the most expensive thing a processor ever does is not executing ...
Add a prefix string to beginning of each line
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PhysicalChemist
50444 silver badges1313 bronze badges
answered Jan 20 '10 at 6:38
Alok SinghalAlok Singhal
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Execution of Python code with -m option or not
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answered Mar 7 '14 at 12:30
Martijn Pieters♦Martijn Pieters
839k212212 gold badges32193219 silver badges28102810 bronze badges
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Cannot generate iOS App archive in xcode
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40 Answers
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Python pip install fails: invalid command egg_info
...tall Distribute.
Distribute has been merged into Setuptools as of version 0.7. If you are using a version <=0.6, upgrade using pip install --upgrade setuptools or easy_install -U setuptools.
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CSS Box Shadow Bottom Only [duplicate]
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Do this:
box-shadow: 0 4px 2px -2px gray;
It's actually much simpler, whatever you set the blur to (3rd value), set the spread (4th value) to the negative of it.
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