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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. ...
Passing two command parameters using a WPF binding
I have a command which I am executing from my XAML file using the following standard syntax:
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How to verify a user's password in Devise
I'm having a problem matching user password using devise gem in rails. User password stored on my db which is encrypted_password and i am trying to find user by password, but I don't understand how to match password from form and encrypted_password in my db.
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Count the occurrences of DISTINCT values
I am trying to find a MySQL query that will find DISTINCT values in a particular field, count the number of occurrences of that value and then order the results by the count.
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How do I query for all dates greater than a certain date in SQL Server?
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adding directory to sys.path /PYTHONPATH
I am trying to import a module from a particular directory.
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DataContractSerializer doesn't call my constructor?
I just realized something crazy, which I assumed to be completely impossible : when deserializing an object, the DataContractSerializer doesn't call the constructor !
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Numpy `logical_or` for more than two arguments
Numpy's logical_or function takes no more than two arrays to compare. How can I find the union of more than two arrays? (The same question could be asked with regard to Numpy's logical_and and obtaining the intersection of more than two arrays.)
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Sorting dropdown alphabetically in AngularJS
I'm populating a dropdown through the use of ng-options which is hooked to a controller that in turn is calling a service. Unfortunately the data coming in is a mess and I need to be able to sort it alphabetically.
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How to make a variadic macro (variable number of arguments)
I want to write a macro in C that accepts any number of parameters, not a specific number
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