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How to remove specific elements in a numpy array
...;>> a = np.array(list(itertools.compress(a, [i not in index for i in range(len(a))])))
>>> a
array([1, 2, 5, 6, 8, 9])
According to my tests, this outperforms numpy.delete(). I don't know why that would be the case, maybe due to the small size of the initial array?
python -m timeit...
How to use Regular Expressions (Regex) in Microsoft Excel both in-cell and loops
...workbook.
Click "OK"
Step 2: Define your pattern
Basic definitions:
- Range.
E.g. a-z matches an lower case letters from a to z
E.g. 0-5 matches any number from 0 to 5
[] Match exactly one of the objects inside these brackets.
E.g. [a] matches the letter a
E.g. [abc] matches a single le...
Finding the index of elements based on a condition using python list comprehension
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you have lists, one for ranges and one for angles, you want to filter out the range values that are above some threshold. How do you also filter the angles corresponding to those ranges in a "best way" fashion?
– Mehdi
...
What's the difference between tilde(~) and caret(^) in package.json?
...://docs.npmjs.com/files/package.json
https://docs.npmjs.com/misc/semver#x-ranges-12x-1x-12-
~version "Approximately equivalent to version" See npm semver - Tilde Ranges & semver (7)
^version "Compatible with version" See npm semver - Caret Ranges & semver (7)
version Must match version ex...
Fastest way to determine if an integer is between two integers (inclusive) with known sets of values
...operator.
if ((unsigned)(number-lower) <= (upper-lower))
in_range(number);
With a typical, modern computer (i.e., anything using twos complement), the conversion to unsigned is really a nop -- just a change in how the same bits are viewed.
Note that in a typical case, you can pre-c...
How do I loop through a date range?
...
I have a Range class in MiscUtil which you could find useful. Combined with the various extension methods, you could do:
foreach (DateTime date in StartDate.To(EndDate).ExcludeEnd()
.Step(DayInterva...
unsigned int vs. size_t
...might make assumption about it": I would hope the compiler knows the exact range of values that size_t can represent! If it doesn't, who does?
– Marc van Leeuwen
Jun 15 '14 at 5:42
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How to play a local video with Swift?
...th: "status")
item.removeObserver(self, forKeyPath: "loadedTimeRanges")
}
NSNotificationCenter.defaultCenter().removeObserver(self)
assetPlayer = nil
playerItem = nil
urlAsset = nil
}
// MARK: - Private
private func prepareToPlay() {
...
Traverse a list in reverse order in Python
..., I'd write a generator.
def reverse_enum(L):
for index in reversed(xrange(len(L))):
yield index, L[index]
L = ['foo', 'bar', 'bas']
for index, item in reverse_enum(L):
print index, item
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Why is there no tuple comprehension in Python?
...se splat * unpacking syntax to unpack a generator expresion:
*(x for x in range(10)),
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