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How do I create test and train samples from one dataframe with pandas?

...ering how I would be able to split the dataframe into two random samples (80% and 20%) for training and testing. 23 Answers...
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When is a C++ destructor called?

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Stubbing a class method with Sinon.js

...ensor.prototype. sinon.stub(Sensor, "sample_pressure", function() {return 0}) is essentially the same as this: Sensor["sample_pressure"] = function() {return 0}; but it is smart enough to see that Sensor["sample_pressure"] doesn't exist. So what you would want to do is something like these: ...
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Difference between exit(0) and exit(1) in Python

What's the difference between exit(0) and exit(1) in Python? 5 Answers 5 ...
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Is there an equivalent for var_dump (PHP) in Javascript?

... 220 As the others said, you can use Firebug, and that will sort you out no worries on Firefox. Chrom...
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List of installed gems?

... Gem::Requirement.default) specs = Gem.source_index.search(dep) puts specs[0..5].map{ |s| "#{s.name} #{s.version}" } # >> Platform 0.4.0 # >> abstract 1.0.0 # >> actionmailer 3.0.5 # >> actionpack 3.0.5 # >> activemodel 3.0.5 # >> activerecord 3.0.5 Here's an ...
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How does collections.defaultdict work?

...efault items are created using int(), which will return the integer object 0. For the second example, default items are created using list(), which returns a new empty list object. share | improve ...
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How to declare array of zeros in python (or an array of a certain size) [duplicate]

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How to convert a string to an integer in JavaScript?

...simplest way would be to use the native Number function: var x = Number("1000") If that doesn't work for you, then there are the parseInt, unary plus, parseFloat with floor, and Math.round methods. parseInt: var x = parseInt("1000", 10); // you want to use radix 10 // so you get a decimal n...
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How can I split and parse a string in Python?

I am trying to split this string in python: 2.7.0_bf4fda703454 3 Answers 3 ...