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Combine two columns of text in pandas dataframe
I have a 20 x 4000 dataframe in Python using pandas. Two of these columns are named Year and quarter . I'd like to create a variable called period that makes Year = 2000 and quarter= q2 into 2000q2 .
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Align items in a stack panel?
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224
You can achieve this with a DockPanel:
<DockPanel Width="300">
<TextBlock>Left&...
Eclipse does not highlight matching variables
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446
Try:
window > preferences > java > editor > mark occurrences
Select all option...
.NET obfuscation tools/strategy [closed]
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44
Back with .Net 1.1 obfuscation was essential: decompiling code was easy, and you could go from ...
What does static_assert do, and what would you use it for?
...public:
static const int bar = 3;
};
static_assert(Foo::bar > 4, "Foo::bar is too small :(");
int main()
{
return Foo::bar;
}
$ g++ --std=c++0x a.cpp
a.cpp:7: error: static assertion failed: "Foo::bar is too small :("
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How do you check if a variable is an array in JavaScript? [duplicate]
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answered Oct 29 '14 at 15:07
jemiloiijemiloii
20.8k66 gold badges4444 silver badges7272 bronze badges
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Getting a map() to return a list in Python 3.x
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Do this:
list(map(chr,[66,53,0,94]))
In Python 3+, many processes that iterate over iterables return iterators themselves. In most cases, this ends up saving memory, and should make things go faster.
If all you're going to do is iterate over this lis...
pip installing in global site-packages instead of virtualenv
...pip, look at the shebang. Is it correct? If not, correct it. Then on line ~42 in your bin/activate, check to see if your virtualenv path is right. It'll look something like this
VIRTUAL_ENV="/Users/me/path/to/virtual/environment"
If it's wrong, correct it, deactivate, then . bin/activate, and if ...
Browserify - How to call function bundled in a file generated through browserify in browser
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answered Apr 25 '14 at 14:43
thejhthejh
39.7k1414 gold badges8888 silver badges105105 bronze badges
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