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Remove rows with duplicate indices (Pandas DataFrame and TimeSeries)
...re readable.
Using the sample data provided:
>>> %timeit df3.reset_index().drop_duplicates(subset='index', keep='first').set_index('index')
1000 loops, best of 3: 1.54 ms per loop
>>> %timeit df3.groupby(df3.index).first()
1000 loops, best of 3: 580 µs per loop
>>> %tim...
How to get String Array from arrays.xml file
...dapter<String>(
this,
android.R.layout.simple_list_item_1,
mTestArray);
// Assign the adapter to this ListActivity
setListAdapter(adapter);
}
}
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What is the difference between vmalloc and kmalloc?
...allocate memory during the handling of a system call, should I specify GFP_ATOMIC ? Is a system call executed in an atomic context?
...
How is Racket different from Scheme?
...re (rename-in racket [#%app old])) (define-syntax #%app (syntax-rules () [(_) '()] [(_ . rest) (old . rest)])) (null? ()) ;; => #t
– Suzanne Dupéron
Nov 22 '16 at 16:20
2
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How to create abstract properties in python abstract classes
... (python docs):
class C(ABC):
@property
@abstractmethod
def my_abstract_property(self):
...
Python 2: (python docs)
class C(ABC):
@abstractproperty
def my_abstract_property(self):
...
...
How do I create a URL shortener?
... your system. Something simple like f(checksum(id) % (62^2)) + f(id) = url_id
– koblas
Sep 4 '10 at 13:53
6
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Reading InputStream as UTF-8
...BufferedReader(new InputStreamReader(url.openStream(), StandardCharsets.UTF_8));
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What does “%” (percent) do in PowerShell?
...at the % operation starts script blocks after the pipeline, although about_Script_Blocks indicates the % isn't necessary.
...
What is the difference between Debug and Release in Visual Studio?
...into functions that might otherwise have been optimized away or in-lined
A _DEBUG preprocessor definition that allows you to write code that acts differently in debug mode compared to release, for example to instrument ASSERTs that should only be used while debugging
Linking to libraries that have a...
How to avoid Dependency Injection constructor madness?
...pendency = concreteDependency;
}
}
IConcreteDependency _concreteDependency;
public ApplicationEfRepository(
Dependency dependency)
: base(dependency)
{
_concreteDependency = dependency.ConcreteDependency;
}
}
Why
Adding new d...