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Label encoding across multiple columns in scikit-learn
I'm trying to use scikit-learn's LabelEncoder to encode a pandas DataFrame of string labels. As the dataframe has many (50+) columns, I want to avoid creating a LabelEncoder object for each column; I'd rather just have one big LabelEncoder objects that works across all my columns of data. ...
Are PHP Variables passed by value or by reference?
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It's by value according to the PHP Documentation.
By default, function arguments are passed by value (so that if the value of the argument within the function is changed, it does not get changed outside of the function). ...
set date in input type date
...ts in the format of Year - month - day as we use in SQL
If the month is 9, it needs to be set as 09 not 9 simply. So it applies for day field also.
Please follow the fiddle link for demo:
var now = new Date();
var day = ("0" + now.getDate()).slice(-2);
var month = ("0" + (now.getMonth() + 1)).sl...
How do I convert a String to an InputStream in Java?
... UTF-8.
For versions of Java less than 7, replace StandardCharsets.UTF_8 with "UTF-8".
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Update Eclipse with Android development tools v. 23
I updated Eclipse with the new SDK tools (rev. 23), but now when Eclipse starts I receive the error:
43 Answers
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How to post data in PHP using file_get_contents?
...ontext_create($opts);
$result = file_get_contents('http://example.com/submit.php', false, $context);
Basically, you have to create a stream, with the right options (there is a full list on that page), and use it as the third parameter to file_get_contents -- nothing more ;-)
As a sidenote : gen...
How to find out where a function is defined?
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You could also do this in PHP itself:
$reflFunc = new ReflectionFunction('function_name');
print $reflFunc->getFileName() . ':' . $reflFunc->getStartLine();
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How can I change the copyright template in Xcode 4?
...ge copyright in the templates for Xcode? That is, at the top of a new file it writes:
5 Answers
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Vertical (rotated) label in Android
...View. This means that all standard styles of TextView may be used, because it is extended TextView.
public class VerticalTextView extends TextView{
final boolean topDown;
public VerticalTextView(Context context, AttributeSet attrs){
super(context, attrs);
final int gravity = getG...
What's the recommended way to connect to MySQL from Go?
...o connect to a MySQL database from Go. I've seen some libraries around but it is difficult to determine the different states of completeness and current maintenance. I don't have complicated needs, but I'd like to know what people are relying on, or what's the most standard solution to connect to My...