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Why is rbindlist “better” than rbind?

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How do I forward parameters to other command in bash script?

... 245 Use the shift built-in command to "eat" the arguments. Then call the child process and pass it...
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Small Haskell program compiled with GHC into huge binary

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No secret option provided to Rack::Session::Cookie warning?

I am running Rails 3.2.3, Ruby 1.9 under Fedora 17. I get this warning, when I run rails s , and how do I fix? 7 Answers ...
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How to deep copy a list?

... 239 E0_copy is not a deep copy. You don't make a deep copy using list() (Both list(...) and testLi...
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Iterate a list with indexes in Python

... 19] and makes it into iterable list of tuples, like so: [(0,3), (1,7), (2,19)] to use it instead of: 6 Answers ...
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Convert columns to string in Pandas

...n (and therefore your keys to strings): In [11]: df = pd.DataFrame([['A', 2], ['A', 4], ['B', 6]]) In [12]: df.to_json() Out[12]: '{"0":{"0":"A","1":"A","2":"B"},"1":{"0":2,"1":4,"2":6}}' In [13]: df[0].to_json() Out[13]: '{"0":"A","1":"A","2":"B"}' Note: you can pass in a buffer/file to save t...
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How does numpy.histogram() work?

...s aren't of equal width) of each bar. In this example: np.histogram([1, 2, 1], bins=[0, 1, 2, 3]) There are 3 bins, for values ranging from 0 to 1 (excl 1.), 1 to 2 (excl. 2) and 2 to 3 (incl. 3), respectively. The way Numpy defines these bins if by giving a list of delimiters ([0, 1, 2, 3]) in...
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Logical operators for boolean indexing in Pandas

... 219 When you say (a['x']==1) and (a['y']==10) You are implicitly asking Python to convert (a['x...
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Script parameters in Bash

... 125 The arguments that you provide to a bashscript will appear in the variables $1 and $2 and $3 wh...