大约有 3,285 项符合查询结果（耗时：0.0289秒） [XML]
How can I upload fresh code at github?
... to 'git@github.com:xxxx/yyyy.git' To prevent you from losing history, non-fast-forward updates were rejected Merge the remote changes before pushing again. See the 'Note about fast-forwards' section of 'git push --help' for details."
– chmike
May 20 '12 at 13...
How to shift a column in Pandas DataFrame
...245.0 234.0
3 265.0 253.0
4 283.0 272.0
5 NaN 291.0
Perhaps not fast but simple to read. Consider setting variables for the column names and the actual shift required.
Edit: Generally shifting is possible by df[2].shift(1) as already posted however would that cut-off the carryover.
...
When to use Tornado, when to use Twisted / Cyclone / GEvent / other [closed]
...hanism through with asynchronous architecture is achieved. Twisted is very fast. But is not suitable for writing conventional webapps. If you want to do something low-level networking stuff, twisted is your friend.
"Tornado is a Python web framework and asynchronous networking library, originally d...
How does C compute sin() and other math functions?
...uns when you call sin() on a typical x86-64 Linux system. It is apparently faster than the fsin assembly instruction. Source code: sysdeps/ieee754/dbl-64/s_sin.c, look for __sin (double x).
This code is very complex. No one software algorithm is as fast as possible and also accurate over the whole ...
How to do multiple arguments to map function where one remains the same in python?
...
yup, but how fast is it in comparison to map function?
– Shan
May 31 '12 at 13:51
...
Is there a string math evaluator in .NET?
...
Have you seen http://ncalc.codeplex.com ?
It's extensible, fast (e.g. has its own cache) enables you to provide custom functions and varaibles at run time by handling EvaluateFunction/EvaluateParameter events. Example expressions it can parse:
Expression e = new Expression("Round(P...
Resizing an image in an HTML5 canvas
... the image). When I get the chance, I'll try yours out and see if its any faster. And I think webworkers make multi-core javascript possible now. I was going to try using them to speed it up, but I was having trouble figuring out how to make this into a multithreaded algorithm
...
Find and Replace text in the entire table using a MySQL query
...
This works amazingly fast. I love this solution. I had to do some url replacements and instead of using slashes as my delimiters I used pipes instead (read this up grymoire.com/Unix/Sed.html). Example: sed -i 's|olddomain.com|http://newdomain.co...
Is it possible to specify your own distance function using scikit-learn K-Means Clustering?
.......
def kmeanssample( X, k, nsample=0, **kwargs ):
""" 2-pass kmeans, fast for large N:
1) kmeans a random sample of nsample ~ sqrt(N) from X
2) full kmeans, starting from those centres
"""
# merge w kmeans ? mttiw
# v large N: sample N^1/2, N^1/2 of that
...
How to break nested loops in JavaScript? [duplicate]
... {
i = 5;
break;
}
}
}
2) Use label
fast:
for (i = 0; i < 5; i++)
{
for (j = 0; j < 5; j++)
{
if (j === 2)
break fast;
}
}
3) Use variable
var exit_loops = false;
for (i = 0; i < 5; i++)
{
for (j = 0; j < 5; j+...