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Find unique rows in numpy.array
... it as np.uint16s, which combines every two columns into a single one, but more flexible.
– Jaime
Jun 7 '13 at 2:34
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Are there strongly-typed collections in Objective-C?
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What is the difference between Θ(n) and O(n)?
...)) they actually mean Θ(g(n)) but technically, there is a difference.
More technically:
O(n) represents upper bound. Θ(n) means tight bound.
Ω(n) represents lower bound.
f(x) = Θ(g(x)) iff f(x) =
O(g(x)) and f(x) = Ω(g(x))
Basically when we say an algorithm is of O(n), it...
Is C++ context-free or context-sensitive?
...duce an Type-0 grammar ("unrestricted") in the Chomsky hierarchy, which is more powerful than a context-sensitive grammar; unrestricted grammars are Turing-complete. A context-sensitive (Type-1) grammar allows multiple symbols of context on the left hand side of a production, but the same context mu...
How do I obtain crash-data from my Android application?
...of my application running on the wild so that I can improve it and make it more solid.
30 Answers
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How to send an email with Gmail as provider using Python?
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How to explain dependency injection to a 5-year-old? [closed]
...matter why you are invoking your object, it uses the same dependencies.
A more powerful technique is to be able to create your object and provide it with dependencies to use. So you might create a database connection to use, then hand it to your object. This way, you can create your object with di...
Is there any way to prevent input type=“number” getting negative values?
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Here's a more reliable reference source.
– Álvaro González
Jun 10 '15 at 10:15
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Why were pandas merges in python faster than data.table merges in R in 2012?
... character columns in keys, which should resolve that issue by integrating more closely with R's own global string hash table. Some benchmark results are already reported by test.data.table() but that code isn't hooked up yet to replace the levels to levels match.
Are pandas merges faster than data...
Is it better to reuse a StringBuilder in a loop?
...ded an edit in my answer to explain why this might be happening. I'll look more carefully in a while (45 mins). Note that doing concatenation in the append calls reduces the point of using StringBuilder in the first place somewhat :)
– Jon Skeet
Oct 28 '08 at 7...