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best way to preserve numpy arrays on disk
... to "pickle" directly into a compressed archive by doing:
import pickle, gzip, lzma, bz2
pickle.dump( data, gzip.open( 'data.pkl.gz', 'wb' ) )
pickle.dump( data, lzma.open( 'data.pkl.lzma', 'wb' ) )
pickle.dump( data, bz2.open( 'data.pkl.bz2', 'wb' ) )
Appendix
import numpy as np
import...
How to make rounded percentages add up to 100%
...if (delta < 0)
{
applyDeltaSequence = original
.Zip(Enumerable.Range(0, int.MaxValue), (x, index) => new { x, index })
.OrderBy(a => original[a.index] - rounded[a.index])
.ThenByDescending(a => a.index)
.Select(a => a.index)....
Android - Using Custom Font
...
Sure here is the link to the zipped up project. dl.dropbox.com/u/8288893/customFont.zip
– Octavian A. Damiean
Sep 6 '10 at 12:32
5
...
What is the difference between encode/decode?
...n be applied to 8-bit strings in a meaningful way:
>>> s.encode('zip')
'x\x9c;\xbc\r\x00\x02>\x01z'
You are right, though: the ambiguous usage of "encoding" for both these applications is... awkard. Again, with separate byte and string types in Python 3, this is no longer an issue.
...
pandas: How do I split text in a column into multiple rows?
...= pd.DataFrame(['a b c']*100000, columns=['col']);
print pd.DataFrame(dict(zip(range(3), [df['col'].apply(lambda x : x.split(' ')[i]) for i in range(3)]))).head()"
The second simply refrains from allocating 100 000 Series, and this is enough to make it around 10 times faster. But the third solutio...
What is the difference between Class Path and Build Path
...In CLASSPATH environment you need to specify only .class files (i.e., jar, zip files – Inside jar, zip files you will find only java classes) i.e. you are helping Java Virtual Machine (JVM) to find Java class files
Also what should i do to create a file
under the src folder of a Spring MVC
...
Common MySQL fields and their appropriate data types
... |
| US zip code | CHAR(5) | Use CHAR(10) if you store extended
codes
| US/Canada p.code | CHAR(6) | ...
程序员才能听得懂的笑话 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术
...
22、程序猿最烦两件事，第一件事是别人要他给自己的代码写文档，第二件呢？是别人的程序没有留下文档。
23、程序员的读书历程：x 语言入门 —> x 语言应用实践 —> x 语言高阶编程 —> x 语言的科学与艺术 —> 编程之美 —...
py2exe - generate single executable file
...le you will want to set bundle_files to 1, compressed to True, and set the zipfile option to None. That way it creates one compressed file for easy distribution.
Here is a more complete description of the bundle_file option quoted directly from the py2exe site*
Using "bundle_files" and "zipfile...
How do I undo 'git add' before commit?
...iles of the given extension you want to unadd. For me it was *.bmp & *.zip
– boulder_ruby
Nov 26 '13 at 14:25
22
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