大约有 48,000 项符合查询结果(耗时:0.0371秒) [XML]
How to get the first column of a pandas DataFrame as a Series?
...pandas as pd
>>> df = pd.DataFrame({'x' : [1, 2, 3, 4], 'y' : [4, 5, 6, 7]})
>>> df
x y
0 1 4
1 2 5
2 3 6
3 4 7
>>> s = df.ix[:,0]
>>> type(s)
<class 'pandas.core.series.Series'>
>>>
====================================================...
python pandas remove duplicate columns
...
Jean-François Corbett
33.6k2525 gold badges124124 silver badges172172 bronze badges
answered Nov 5 '16 at 6:15
Gene BurinskyGene ...
show all tags in git log
...have the following situation (assuming that it points at some commit)
35805ce <--- 5b7b4ead <=== refs/tags/A
(commit) tag A
(tag)
Please also note that "git tag -f A A" (notice the absence of options forcing it to be an annotated tag) is a noop - it doesn't...
Selecting data frame rows based on partial string match in a column
...
150
I notice that you mention a function %like% in your current approach. I don't know if that's a ...
Array initializing in Scala
...
Vasil RemeniukVasil Remeniuk
19.7k55 gold badges6666 silver badges8181 bronze badges
...
Create an index on a huge MySQL production table without table locking
I need to create an index on a ~5M rows MySQL table. It is a production table, and I fear a complete block of everything if I run a CREATE INDEX statement...
...
Python unittests in Jenkins?
...all last):
File "/opt/python-2.6.1/lib/python2.6/site-packages/unittest2-0.5.1-py2.6.egg/unittest2/case.py", line 340, in run
testMethod()
File "/home/damien/tests.py", line 16, in test_fail
self.assertEqual(11, 7 + 3)
File "/opt/python-2.6.1/lib/python2.6/site-packages/unittest2-0.5.1-py2.6.egg/uni...
Why do some C# lambda expressions compile to static methods?
...
5 Answers
5
Active
...
