大约有 3,200 项符合查询结果（耗时：0.0195秒） [XML]
Inline code in org-mode
...d Apr 24 '13 at 8:49
François FévotteFrançois Févotte
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Get the distance between two geo points
...r results[] get the correct distance.
– Gastón Saillén
Nov 11 '18 at 2:58
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Find element's index in pandas Series
...randint(0,10,10000))
In [9]: %timeit s[s == 5]
1000 loops, best of 3: 203 µs per loop
In [12]: i = Index(s)
In [13]: %timeit i.get_loc(5)
1000 loops, best of 3: 226 µs per loop
As Viktor points out, there is a one-time creation overhead to creating an index (its incurred when you actually DO ...
Cartesian product of x and y array points into single array of 2D points
...1000)]
Test results:
In [2]: test_all(*(x100 * 2))
repeat_product:
67.5 µs ± 633 ns per loop (mean ± std. dev. of 7 runs, 10000 loops each)
dstack_product:
67.7 µs ± 1.09 µs per loop (mean ± std. dev. of 7 runs, 10000 loops each)
cartesian_product:
33.4 µs ± 558 ns per loop (mean ± std....
How to determine whether a Pandas Column contains a particular value
...10]: x = pd.Series(range(1000000))
In [13]: timeit 999999 in x.values
567 µs ± 25.6 µs per loop (mean ± std. dev. of 7 runs, 1000 loops each)
In [15]: timeit x.isin([999999]).any()
9.54 ms ± 291 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
In [16]: timeit (x == 999999).any()
6....
How do you find the last day of the month? [duplicate]
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@César: It's a really bad idea to call DateTime.Today multiple times like this. It could give different results half way through, if you call it around midnight. Far better to write a method that accepts a single DateTime and ...
How to convert a string of bytes into an int?
...thon.org/library/struct.html#format-characters
– André Laszlo
Dec 24 '11 at 0:50
59
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Eclipse comment/uncomment shortcut?
...ted Jun 6 '13 at 18:49
Juan Cortés
17.7k88 gold badges6262 silver badges8888 bronze badges
answered Apr 4 '11 at 5:08
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Why isn't my Pandas 'apply' function referencing multiple columns working? [closed]
... that an intermediate result is being cached. 1000 loops, best of
3: 481 µs per loop
Example 2: vectorize using pandas.apply():
%%timeit
df['a'] % df['c']
The slowest run took 458.85 times longer than the fastest. This could
mean that an intermediate result is being cached. 10000 loops...
Add spaces before Capital Letters
Given the string "ThisStringHasNoSpacesButItDoesHaveCapitals" what is the best way to add spaces before the capital letters. So the end string would be "This String Has No Spaces But It Does Have Capitals"
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