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What is “entropy and information gain”?

...: female | | ends-vowel=0: male length>=7 | length=5: male basically each node represent a test performed on a single attribute, and we go left or right depending on the result of the test. We keep traversing the tree until we reach a leaf node which contains the class prediction (m or f)...
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RESTful URL design for search

... searching, use querystrings. This is perfectly RESTful: /cars?color=blue&type=sedan&doors=4 An advantage to regular querystrings is that they are standard and widely understood and that they can be generated from form-get. ...
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XMLHttpRequest Origin null is not allowed Access-Control-Allow-Origin for file:/// to file:/// (Serv

...allow-file-access-from-files" do shell script (quoted form of chromePath) & switch & " > /dev/null 2>&1 &" share | improve this answer | follow ...
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argparse module How to add option without any argument?

... As @Felix Kling suggested use action='store_true': >>> from argparse import ArgumentParser >>> p = ArgumentParser() >>> _ = p.add_argument('-f', '--foo', action='store_true') >>> args = p.pars...
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Does Python support short-circuiting?

...Python's short-circuiting behavior of and, or operators in the following example: >>> fun(1) executed 1 >>> 1 or fun(1) # due to short-circuiting "executed" not printed 1 >>> 1 and fun(1) # fun(1) called and "executed" printed executed 1 >>> 0 and fun(1) ...
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Sort an Array by keys based on another Array?

Is it possible in PHP to do something like this? How would you go about writing a function? Here is an example. The order is the most important thing. ...
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How to detect if a function is called as constructor?

... // except in in EcmaScript 5 strict mode. && !this.__previouslyConstructedByX) { isConstructor = true; this.__previouslyConstructedByX = true; } alert(isConstructor); } Obviously this is not ideal, since you now have an extra useless ...
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how to debug the js in jsfiddle

...ever using chrome dev tools. Press ctrl+shift+F and you can search through all the files in the source. share | improve this answer | follow | ...
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check if variable is dataframe

when my function f is called with a variable I want to check if var is a pandas dataframe: 2 Answers ...
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Merge (with squash) all changes from another branch as a single commit

In Git, is there a way to merge all changes from one branch into another, but squash to a single commit at the same time? ...