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How do I create test and train samples from one dataframe with pandas?
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Better solution. scikit learn doesn't take raw data frames, rather it expects arrays.
– Cybernetic
Nov 8 '19 at 20:21
2
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When do we have to use copy constructors?
... proper way to deal with the situation is to use proper classes instead of raw pointers.
class Righteous
{
public:
private:
std::unique_ptr<Foo> mFoo;
std::unique_ptr<Bar> mBar;
};
With the same constructor implementation (or actually, using make_unique), I now have exception safe...
How to read a file in reverse order?
...line[::-1]
if __name__ == '__main__':
for qline in readlines_reverse(raw_input()):
print qline
Since the file is read character by character in reverse order, it will work even on very large files, as long as individual lines fit into memory.
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C fopen vs open
...nter directly.
There are several advantages to using FILE-objects rather raw file descriptors, which includes greater ease of usage but also other technical advantages such as built-in buffering. Especially the buffering generally results in a sizeable performance advantage.
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ASP.NET WebApi vs MVC ? [closed]
...making output of HTML easy. ASP.NET Web API is focused on making output of raw data easy.
In the WebForms world, ASP.NET MVC would be equivalent to .aspx pages and ASP.NET Web API would be .asmx
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How would I skip optional arguments in a function call?
...lt value.
The clarity of this solution is of course better than supplying raw default values (like NULL, 0 etc.) which say nothing to a reader.
(I agree that calling like $var = a(,,'ddd'); would be the best option)
What's the difference between the atomic and nonatomic attributes?
... answered May 25 '12 at 10:56
raw3draw3d
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Why is it OK to return a 'vector' from a function?
...ain successes of modern C++ style. But you seem to be stuck thinking about raw arrays and pointers, so I wouldn't expect you to grasp that.
– underscore_d
Sep 10 '16 at 20:01
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Grep and Sed Equivalent for XML Command Line Processing
... @SteveBennett indeed it doesn't, but the features it adds on top of raw XPath are good enough to make it competitive with "grep and sed". If you want the fancy, fancy goodness of XQuery... well, that's more like an XML equivalent to perl or awk. :)
– Charles Duffy
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Fastest way to download a GitHub project
... within a repository. You need to download each individual files. Use the 'Raw' button once you click each file.
– Manav Kataria
Jan 8 '14 at 20:28
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