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Remap values in pandas column with a dict
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You can use .replace. For example:
>>> df = pd.DataFrame({'col2': {0: 'a', 1: 2, 2:...
ExecJS::RuntimeError on Windows trying to follow rubytutorial
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Generate random numbers with a given (numerical) distribution
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Postgres NOT in array
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SELECT COUNT(*) FROM "messages" WHERE NOT (3 = ANY (recipient_ids))
You can always negate WHE...
Add a number to each selection in Sublime Text 2, incremented once per selection
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How do I create an empty array/matrix in NumPy?
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Is it possible to have multiple statements in a python lambda expression?
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There are several different answers I can give here, from your specific question to more genera...
Rails 2.3-style plugins and deprecation warnings running task in Heroku
I'm upgrading to Rails 3.2, and running rake db:migrate gives me several errors of the form:
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What is the difference between ndarray and array in numpy?
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numpy.array is just a convenience function to create an ndarray; it is not a class itself.
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How to trace the path in a Breadth-First Search?
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# graph is in adjacent list representation
graph = {
'1': ['2', '3', '4'],
'2': ['5', '6'],
'5': ['9', '10'],
'4': ['7', '8'],
'7': ['11', '12']
}
def bfs(graph, start, end):
# maintain a queue of paths
queue = []
# push the first path i...