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How do I create test and train samples from one dataframe with pandas?
I have a fairly large dataset in the form of a dataframe and I was wondering how I would be able to split the dataframe into two random samples (80% and 20%) for training and testing.
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What is pseudopolynomial time? How does it differ from polynomial time?
...l time ? How does it differ from polynomial time? Some algorithms that run in pseudopolynomial time have runtimes like O(nW) (for the 0/1 Knapsack Problem ) or O(√n) (for trial division ); why doesn't that count as polynomial time?
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Apk location in New Android Studio
I started using new Android Studio and cant find the APK of the application in IDE,where it actually locates?
31 Answers
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Relative URLs in WordPress
I've always found it frustrating in WordPress that images, files, links, etc. are inserted into WordPress with an absolute URL instead of relative URL. A relative url is much more convenient for switching domain names, changing between http and https etc. Today I discovered that if you define WP_CON...
Add UIPickerView & a Button in Action sheet - How?
My application requires following things to be added in an action sheet.
11 Answers
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How to run a shell script in OS X by double-clicking?
...user execution permission on OS X, but when I double click on it, it opens in a text editor. How can I get it to run by double-clicking it?
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“Deprecation warning: moment construction falls back to js Date” when trying to convert RFC2822 date
I am using the following code to convert a server-side date-time to local time using moment.js.
6 Answers
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What's wrong with Java Date & Time API? [closed]
...ss negative feedback on Java Date and other date-time-related classes. Being a .NET developer, I cannot fully (without having used them) understand, what's actually wrong with them.
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MassAssignmentException in Laravel
...docs/eloquent#mass-assignment
Laravel provides by default a protection against mass assignment security issues. That's why you have to manually define which fields could be "mass assigned" :
class User extends Model
{
protected $fillable = ['username', 'email', 'password'];
}
Warning : be ...
Final arguments in interface methods - what's the point?
In Java, it is perfectly legal to define final arguments in interface methods and do not obey that in the implementing class, e.g.:
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