大约有 11,000 项符合查询结果（耗时：0.0329秒） [XML]
Combine Date and Time columns using python pandas
I have a pandas dataframe with the following columns;
11 Answers
11
...
Can you list the keyword arguments a function receives?
...argdict) and not invalidArgs(func, argdict)
(This is good only as far as python's arg parsing. Any runtime checks for invalid values in kwargs obviously can't be detected.)
share
|
improve this a...
How to remove an element from a list by index
How do I remove an element from a list by index in Python?
18 Answers
18
...
Read an Excel file directly from a R script
...to have Perl installed on your system -- usually already true on MacOS and Linux, but takes an extra step on Windows, i.e. see http://strawberryperl.com/). There are various caveats, and alternatives, listed on the R wiki page.
The only reason I see not to do this directly is that you may want to e...
write a shell script to ssh to a remote machine and execute commands
...
There are multiple remote linux machines, and I need to write a shell script which will execute the same set of commands in each machine. (Including some sudo operations). How can this be done using shell scripting?
You can do this with ssh, for exa...
psycopg2: insert multiple rows with one query
...ues (
cursor, insert_query, data, template=None, page_size=100
)
The pythonic way of doing it in Psycopg 2.6:
data = [(1,'x'), (2,'y')]
records_list_template = ','.join(['%s'] * len(data))
insert_query = 'insert into t (a, b) values {}'.format(records_list_template)
cursor.execute(insert_quer...
Clang vs GCC - which produces faster binaries? [closed]
... comparison is appended to that.
I maintain an OSS tool that is built for Linux with both GCC and Clang,
and with Microsoft's compiler for Windows. The tool, coan, is a preprocessor
and analyser of C/C++ source files and codelines of such: its
computational profile majors on recursive-descent par...
Two way/reverse map [duplicate]
I'm doing this switchboard thing in python where I need to keep track of who's talking to whom, so if Alice --> Bob, then that implies that Bob --> Alice.
...
How to compile and run C/C++ in a Unix console/Mac terminal?
...
This is the command that works on all Unix machines... I use it on Linux/Ubuntu, but it works in OS X as well. Type the following command in Terminal.app.
$ g++ -o lab21 iterative.cpp
-o is the letter O not zero
lab21 will be your executable file
iterative.cpp is your c++ file
After y...
Why do people say that Ruby is slow? [closed]
...s, but the language is very important too. Dynamic languages like Ruby and Python are slower than static typed languages simply because they require lots of type checking at runtime. Monkey patching is cool, but it is expensive.
– Wilson Freitas
Sep 11 at 19:09...