大约有 23,000 项符合查询结果(耗时:0.0300秒) [XML]
How do I find numeric columns in Pandas?
... exclude. So isNumeric would look like:
numerics = ['int16', 'int32', 'int64', 'float16', 'float32', 'float64']
newdf = df.select_dtypes(include=numerics)
share
|
improve this answer
|
...
How do I daemonize an arbitrary script in unix?
...n't use /etc/inittab), you will need to use the pre-installed inittab as a base for arranging svscanboot to be called by init. It's not hard, but you need to know how to configure the init that your OS uses.
svscanboot is a script that calls svscan, which does the main work of looking for services; ...
How can I confirm a database is Oracle & what version it is using SQL?
...---------------------------------
Oracle Database 10g Release 10.2.0.3.0 - 64bit Production
PL/SQL Release 10.2.0.3.0 - Production
CORE 10.2.0.3.0 Production
TNS for Solaris: Version 10.2.0.3.0 - Production
NLSRTL Version 10.2.0.3.0 - Production
...
Anaconda vs. EPD Enthought vs. manual installation of Python [closed]
...better choice. The Academic version has a larger number of packages in the base install, and many more in the repository. Anaconda also includes Chaco.
share
|
improve this answer
|
...
Incompatible implicit declaration of built-in function ‘malloc’
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
Check number of arguments passed to a Bash script
...aying. {...} is a common syntax and is available to most if not all shells based on sh, even those older shells not following POSIX standards.
– konsolebox
May 20 '16 at 8:08
...
hash function for string
... collisions for this 466k english dictionary while MurmurHash has none for 64 bit hashes, and 21 for 32 bit hashes (around 25 is to be expected for 466k random 32 bit hashes).
My recommendation is using MurmurHash if available, it is very fast, because it takes in several bytes at a time. But if you...
Maximum number of threads per process in Linux?
...t need anywhere near this much stack space. The performance is going to be based on the number of runnable processes, not the number of threads that exist. I have a machine running right now with 1200+ threads with a load of 0.40.
– Robert Gamble
Dec 5 '08 at 1...
How do I safely pass objects, especially STL objects, to and from a DLL?
...L, then examine the produced .def file (if one is produced; this will vary based on your project options) or use a tool like Dependency Walker to find the mangled name. Then, you'll need to write your own .def file, defining an unmangled alias to the mangled function. As an example, let's use the Ge...
Download file from web in Python 3
...access to the file.
import urllib.request
import gzip
...
# Read the first 64 bytes of the file inside the .gz archive located at `url`
url = 'http://example.com/something.gz'
with urllib.request.urlopen(url) as response:
with gzip.GzipFile(fileobj=response) as uncompressed:
file_header ...