大约有 47,000 项符合查询结果（耗时：0.0529秒） [XML]
Linking R and Julia?
Julia looks very promising for fast and syntax-sane computation (e.g. here ), but I suspect it will not be anywhere near R in terms of overall statistics workflow for some time yet. So I'd like to use it where C++ is mainly used in R programs: to optimize slow portions of code. Before I invest th...
SSH Private Key Permissions using Git GUI or ssh-keygen are too open
Recently I've been unable to clone or push to github, and I'm trying to find the root cause.
25 Answers
...
How do I use Wget to download all images into a single folder, from a URL?
I am using wget to download all images from a website and it works fine but it stores the original hierarchy of the site with all the subfolders and so the images are dotted around. Is there a way so that it will just download all the images into a single folder? The syntax I'm using at the moment i...
Git push error: Unable to unlink old (Permission denied)
...ll have the file opened this error will appear as well. Had the same error and that was why i was not able to push my changes in.
– Matias
Nov 3 '16 at 14:05
1
...
Execution time of C program
...Windows machines (from the Win98 era) it was closer to 60ms.
clock() is standard C; it works "everywhere". There are system-specific functions, such as getrusage() on Unix-like systems.
Java's System.currentTimeMillis() does not measure the same thing. It is a "wall clock": it can help you measure...
Using sed, how do you print the first 'N' characters of a line?
...e first 100 characters:
cat file |colrm 101
It's been around for years and is in most linux's and bsd's (freebsd for sure), usually by default. I can't remember ever having to type apt-get install colrm.
share
|...
Signing a Windows EXE file
...n Tool
You download it as part of the Windows SDK for Windows Server 2008 and .NET 3.5. Once downloaded you can use it from the command line like so:
signtool sign /a MyFile.exe
This signs a single executable, using the "best certificate" available. (If you have no certificate, it will show a...
Extract value of attribute node via XPath
...
What if I have a list of attributes and I need their values? string() seems to return just the first value.
– Konstantin Milyutin
Sep 18 '19 at 19:24
...
invalid context 0x0 under iOS 7.0 and system degradation
...oubt that's the issue. These invalid context 0x0 error messages are common and easy to reproduce in iOS 7. In fact, I can reproduce the error using storyboard with zero code. I drag a UITextField onto the canvas in IB, run the app, and double tap inside the text field.
In many situations, it's har...
QuotaExceededError: Dom exception 22: An attempt was made to add something to storage that exceeded
... edited Sep 20 '17 at 12:39
sandstrom
12k55 gold badges5757 silver badges5959 bronze badges
answered May 4 '14 at 7:48
...