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Linear Regression and group by in R
...ssion for each state so that at the end I have a vector of lm responses. I can imagine doing for loop for each state then doing the regression inside the loop and adding the results of each regression to a vector. That does not seem very R-like, however. In SAS I would do a 'by' statement and in SQL...
How can I save a screenshot directly to a file in Windows? [closed]
...no good for capturing those cool windows backgrounds. Very much unlike on Android, which I can capture a screenshot of anything, anytime, including the lock screen.
– Triynko
Mar 10 '17 at 19:16
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How do I create a self-signed certificate for code signing on Windows?
How do I create a self-signed certificate for code signing using tools from the Windows SDK?
5 Answers
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Convert string in base64 to image and save on filesystem in Python
... what is imgData and where is open() method, etc and how to do the same in android?
– Raj
Jan 17 '13 at 12:55
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Can ordered list produce result that looks like 1.1, 1.2, 1.3 (instead of just 1, 2, 3, …) with css?
...t need any JavaScript.
It’s tested on Firefox 32, Chromium 37, IE 9 and Android Browser. Doesn't work on IE 7 and previous.
CSS:
ol {
list-style-type: none;
counter-reset: item;
margin: 0;
padding: 0;
}
ol > li {
display: table;
counter-increment: item;
margin-bottom: 0.6em;
}...
What is a build tool?
...he creation of executable
applications from source code (e.g., .apk for an Android app). Building
incorporates compiling,linking and packaging the code into a usable or
executable form.
Basically build automation is the act of scripting or automating a
wide variety of tasks that software developers ...
Javascript Drag and drop for touch devices [closed]
...
Thanks, on my Android device stuff is now draggable. However, the click event is not fired anymore when I click on it. Any ideas how to fix that?
– John Landheer
Dec 2 '11 at 8:58
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Python Requests throwing SSLError
I'm working on a simple script that involves CAS, jspring security check, redirection, etc. I would like to use Kenneth Reitz's python requests because it's a great piece of work! However, CAS requires getting validated via SSL so I have to get past that step first. I don't know what Python reque...
Automatic Retina images for web sites
...at very few hi-DPI users will be on the unsupported browsers (IE & old Android), and lastly that it's fail-safe - users without support simply see a normal DPI image. Definitely think it's ready for usage.
– andrewb
Apr 18 '16 at 3:04
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程序员之网络安全系列（五）：数字证书以及12306的证书问题 - 更多技术 - ...
...章就是数字签名, 那么”敏捷的水”就是颁发证书的机构CA(Certificate Authority)，也就是证书授权中心。
CA CA 是“Certificate Authority”的缩写，也叫“证书授权中心”。 它是负责管理和签发证书的第三方机构，就好比例子里面的“敏...