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Which concurrent Queue implementation should I use in Java?
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55
Basically the difference between them are performance characteristics and blocking behavior.
T...
Convert pandas dataframe to NumPy array
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15 Answers
15
Active
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Would it be beneficial to begin using instancetype instead of id?
... it isn't this.
– Steven Fisher
Feb 5 '13 at 19:17
10
it's useful for convenience constructors mo...
What is the difference between Pan and Swipe in iOS?
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answered Mar 27 '12 at 23:45
ricksterrickster
115k2323 gold badges244244 silver badges295295 bronze badges
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Rails formatting date
...ith century (can be negative, 4 digits at least)
-0001, 0000, 1995, 2009, 14292, etc.
%C - year / 100 (round down. 20 in 2009)
%y - year % 100 (00..99)
%m - Month of the year, zero-padded (01..12)
%_m blank-padded ( 1..12)
%-m no-padded (1..12)
%B - The full...
Why does Python code run faster in a function?
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540
You might ask why it is faster to store local variables than globals. This is a CPython implem...
Find first element by predicate
...the following test:
List<Integer> list = Arrays.asList(1, 10, 3, 7, 5);
int a = list.stream()
.peek(num -> System.out.println("will filter " + num))
.filter(x -> x > 5)
.findFirst()
.get();
System.out.println(a);
Which outputs:
will ...
What is the best way to compute trending topics or tags?
...rn (obs - avg) / std
Sample Output
>>> zscore(12, [2, 4, 4, 4, 5, 5, 7, 9])
3.5
>>> zscore(20, [21, 22, 19, 18, 17, 22, 20, 20])
0.0739221270955
>>> zscore(20, [21, 22, 19, 18, 17, 22, 20, 20, 1, 2, 3, 1, 2, 1, 0, 1])
1.00303599234
>>> zscore(2, [21, 22, 19, 18...
visual c++: #include files from other projects in the same solution
...anks!
– David Hall
Apr 13 '11 at 11:50
9
There was a suggestion from anonymous user as, "When you...
Where in a virtualenv does the custom code go?
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Ned DeilyNed Deily
75.4k1515 gold badges119119 silver badges147147 bronze badges
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