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Label encoding across multiple columns in scikit-learn
...
You can easily do this though,
df.apply(LabelEncoder().fit_transform)
EDIT2:
In scikit-learn 0.20, the recommended way is
OneHotEncoder().fit_transform(df)
as the OneHotEncoder now supports string input.
Applying OneHotEncoder only to certain columns is possible with the Colum...
Traits in PHP – any real world examples/best practices? [closed]
...ia setters:
class ClassName {
protected $logger;
public function __construct(LoggerInterface $logger) {
$this->logger = $logger;
}
// or
public function setLogger(LoggerInterface $logger) {
$this->logger = $logger;
}
}
The main reason why I find that...
How can I alter a primary key constraint using SQL syntax?
...the constraint with an Alter table then recreate it.
ALTER TABLE <Table_Name>
DROP CONSTRAINT <constraint_name>
ALTER TABLE <Table_Name>
ADD CONSTRAINT <constraint_name> PRIMARY KEY (<Column1>,<Column2>)
...
Python, Unicode, and the Windows console
...icode API as the win-unicode-console package mentioned below. print(unicode_string) should just work now.
I get a UnicodeEncodeError: 'charmap' codec can't encode character... error.
The error means that Unicode characters that you are trying to print can't be represented using the current...
Suppress/ print without b' prefix for bytes in Python 3
...
If we take a look at the source for bytes.__repr__, it looks as if the b'' is baked into the method.
The most obvious workaround is to manually slice off the b'' from the resulting repr():
>>> x = b'\x01\x02\x03\x04'
>>> print(repr(x))
b'\x01\x02...
How do I load a file from resource folder?
...);
List<String> lines = Files.readAllLines(path, StandardCharsets.UTF_8);
// java.io.InputStream
InputStream inputStream = ClassLoaderUtil.getResourceAsStream("test.csv", YourCallingClass.class);
InputStreamReader streamReader = new InputStreamReader(inputStream, StandardCharsets.UTF_8);
B...
how to “reimport” module to python then code be changed after import
...port sys then reload(sys.modules['foo']) or perhaps reload(sys.modules[bar.__module__])
– drevicko
Oct 28 '13 at 1:02
3
...
How to change the Push and Pop animations in a navigation based app
...tions: {
tz.view.frame = f
}, completion: {_ in
transitionContext.completeTransition(true)
})
}
func animatePop(using transitionContext: UIViewControllerContextTransitioning) {
let fz =...
Regular Expression: Any character that is NOT a letter or number
... \w is for Word characters and is exactly the same as [a-zA-Z0-9_] (notice that underscore is considered a word character.) ...so the shorthand would be str.replace(/[^\w]/g, ' ')
– Joel Mellon
Aug 30 '13 at 16:41
...
read complete file without using loop in java
...ring> lines = Files.readAllLines(Paths.get("file"), StandardCharsets.UTF_8);
or
String text = new String(Files.readAllBytes(Paths.get("file")), StandardCharsets.UTF_8);
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