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Get unique values from a list in python [duplicate]
...ambda l, x: l+[x] if x not in l else l, mylist, [])', setup=setup)
2.13108491897583
timeit.timeit('reduce(lambda l, x: l if x in l else l+[x], mylist, [])', setup=setup)
2.207760810852051
timeit.timeit('[x for i, x in enumerate(mylist) if i == mylist.index(x)]', setup=setup)
2.3621110916137695
A...
Linux的诞生和发展 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...inux 操作系统是UNIX 操作系统的一种克隆系统。它诞生于1991 年的10 月5 日（这是第一次正式向外公布的时间...Linux 的诞生和发展
Linux 操作系统是UNIX 操作系统的一种克隆系统。它诞生于1991 年的10 月5 日（这是第一次正式向外公...
String concatenation: concat() vs “+” operator
...
91
Niyaz is correct, but it's also worth noting that the special + operator can be converted into ...
Declaring a custom android UI element using XML
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91
+100
Great r...
Multiple controllers with AngularJS in single page app
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91
I think you are missing the "single page app" meaning.
That doesn't mean you will physically h...
PostgreSQL - fetch the row which has the Max value for a column
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91
On a table with 158k pseudo-random rows (usr_id uniformly distributed between 0 and 10k, trans_...
Frequency table for a single variable
... ... ...
208 Vietnam 71.000000 3.91
209 West Bank and Gaza 32.000000
210 Yemen, Rep. 39.000000 .2
211 Zambia 61.000000 3.56
212 Zimbabwe 66.800003 4.96
[213 rows x 3 col...
How can I let a table's body scroll but keep its head fixed in place?
...
Vitalii FedorenkoVitalii Fedorenko
91.6k2424 gold badges140140 silver badges111111 bronze badges
...
How do I update a GitHub forked repository?
...instead perform a "fast-forward":
$ git merge upstream/master
Updating 34e91da..16c56ad
Fast-forward
README.md | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
Tip: If you want to update your repository on GitHub, follow the instructions here
...
How can I obtain the element-wise logical NOT of a pandas Series?
...alse, True]*10000)
In [10]: %timeit np.invert(s)
10000 loops, best of 3: 91.8 µs per loop
In [11]: %timeit ~s
10000 loops, best of 3: 73.5 µs per loop
In [12]: %timeit (-s)
10000 loops, best of 3: 73.5 µs per loop
As of Pandas 0.13.0, Series are no longer subclasses of numpy.ndarray; they a...