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Python element-wise tuple operations like sum
...ay( [1,2,3] )
b = array( [3,2,1] )
print a + b
gives array([4,4,4]).
See http://www.scipy.org/Tentative_NumPy_Tutorial
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MongoDB: Combine data from multiple collections into one..how?
... together by using the "reduce" out option in MongoDB 1.8+ map/reduce (see http://www.mongodb.org/display/DOCS/MapReduce#MapReduce-Outputoptions). You need to have some key in both collections that you can use as an _id.
For example, let's say you have a users collection and a comments collection ...
mongodb/mongoose findMany - find all documents with IDs listed in array
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Using ChildActionOnly in MVC
...ewBag.Message
</p>
if you run the application and do this request http://localhost:57803/home/mydatetime
The result will be Server Error like so:
This means you can not directly call the partial view. but it can be called via Index() view as in the Index.cshtml
@Html.Action("MyDat...
What are attributes in .NET?
...As for what they're good for... there are almost limitless uses for them.
http://www.codeproject.com/KB/cs/dotnetattributes.aspx
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Eclipse returns error message “Java was started but returned exit code = 1”
....requiredJavaVersion=1.6 fixed this as my jvm version is 1.6. From the doc http://help.eclipse.org/indigo/index.jsp?topic=%2Forg.eclipse.platform.doc.isv%2Freference%2Fmisc%2Fruntime-options.html
osgi.requiredJavaVersion
The minimum java version that is required to launch Eclipse. The default valu...
What is a C++ delegate?
...henever and wherever you like.
There are some very good examples here:
http://www.codeproject.com/Articles/7150/Member-Function-Pointers-and-the-Fastest-Possible
http://www.codeproject.com/Articles/11015/The-Impossibly-Fast-C-Delegates
http://www.codeproject.com/Articles/13287/Fast-C-Delegate
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ImportError in importing from sklearn: cannot import name check_build
...
I had the same issue on Windows. Solved it by installing Numpy+MKL from http://www.lfd.uci.edu/~gohlke/pythonlibs/#numpy (there it's recommended to install numpy+mkl before other packages that depend on it) as suggested by this answer.
...
Haml: Control whitespace around text
...al question:
I will first
= succeed ',' do
= link_to 'link somewhere', 'http://example.com'
- if @condition
then render this half of the sentence if a condition is met
Produces:
I will first
<a href="http://example.com">link somewhere</a>,
then render this half of the sentence if...
How can I get a web site's favicon?
...wnload the icon without caring what the icon is you can use a utility like http://www.google.com/s2/favicons which will do all of the heavy lifting:
var client = new System.Net.WebClient();
client.DownloadFile(
@"http://www.google.com/s2/favicons?domain=stackoverflow.com",
"stackoverflow.c...