大约有 44,700 项符合查询结果（耗时：0.0509秒） [XML]
python pandas: apply a function with arguments to a series
...w documentation). So now you can do:
my_series.apply(your_function, args=(2,3,4), extra_kw=1)
The positional arguments are added after the element of the series.
For older version of pandas:
The documentation explains this clearly. The apply method accepts a python function which should have ...
Creating a new column based on if-elif-else condition
... passing in the axis=1 option:
In [1]: df['C'] = df.apply(f, axis=1)
In [2]: df
Out[2]:
A B C
a 2 2 0
b 3 1 1
c 1 3 -1
Of course, this is not vectorized so performance may not be as good when scaled to a large number of records. Still, I think it is much more readable. Especially c...
Connect to Amazon EC2 file directory using Filezilla and SFTP
I have created an AWS EC2 Instance and I want to be able to upload files to the server directory using FileZilla in the simplest and most straightforward fashion possible.
...
SyntaxError: Non-ASCII character '\xa3' in file when function returns '£'
...
answered May 14 '12 at 19:16
Silas RaySilas Ray
23.5k55 gold badges4141 silver badges5959 bronze badges
...
INSERT with SELECT
...(name, location, gid)
SELECT name, location, 1
FROM courses
WHERE cid = 2
You can put a constant of the same type as gid in its place, not just 1, of course. And, I just made up the cid value.
share
|
...
How to trim white spaces of array values in php
...
12 Answers
12
Active
...
Less aggressive compilation with CSS3 calc
...ession inside calc by default since v3.00.
Original answer (Less v1.x...2.x):
Do this:
body { width: calc(~"100% - 250px - 1.5em"); }
In Less 1.4.0 we will have a strictMaths option which requires all Less calculations to be within brackets, so the calc will work "out-of-the-box". This is an ...
PostgreSQL error: Fatal: role “username” does not exist
... |
edited Jun 6 at 22:57
answered Aug 12 '12 at 4:13
...
How to get relative path from absolute path
...
23 Answers
23
Active
...