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Numpy first occurrence of value greater than existing value
...nce are returned.") and doesn't save another list.
In [2]: N = 10000
In [3]: aa = np.arange(-N,N)
In [4]: timeit np.argmax(aa>N/2)
100000 loops, best of 3: 52.3 us per loop
In [5]: timeit np.where(aa>N/2)[0][0]
10000 loops, best of 3: 141 us per loop
In [6]: timeit np.nonzero(aa>N/2)[0...
Simple regular expression for a decimal with a precision of 2
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Dave Jarvis
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answered Nov 21 '08 at 7:32
DocMaxDocMax
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Does JavaScript have a method like “range()” to generate a range within the supplied bounds?
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How to check if a number is a power of 2
...t:
((4 & (4-1)) == 0)
This translates to this of course:
((4 & 3) == 0)
But what exactly is 4&3?
The binary representation of 4 is 100 and the binary representation of 3 is 011 (remember the & takes the binary representation of these numbers). So we have:
100 = 4
011 = 3
I...
Counting the number of True Booleans in a Python List
... is equal to 1.
>>> sum([True, True, False, False, False, True])
3
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Java: how can I split an ArrayList in multiple small ArrayLists?
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You can use subList(int fromIndex, int toIndex) to get a view of a portion of the original lis...
How to drop rows of Pandas DataFrame whose value in a certain column is NaN
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answered Nov 16 '12 at 9:34
eumiroeumiro
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Floating point vs integer calculations on modern hardware
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Alas, I can only give you an "it depends" answer...
From my experience, there are many, many v...
Finding local IP addresses using Python's stdlib
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answered Oct 3 '08 at 12:06
Vinko VrsalovicVinko Vrsalovic
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Calculating Pearson correlation and significance in Python
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SachaSacha
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