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How to search for “R” materials? [closed]
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http://rseek.org is a great search engine for R manuals, mailing lists, and various websites. It's a Google syndicated search app with specialized UI. I always use it.
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Simple Digit Recognition OCR in OpenCV-Python
...n OCR" in OpenCV-Python (cv2). It is just for learning purposes. I would like to learn both KNearest and SVM features in OpenCV.
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Is there a command to list SVN conflicts?
Does anyone know an SVN command to list current conflicts between the repo and the working copy?
9 Answers
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What is the current state of the art in HTML canvas JavaScript libraries and frameworks? [closed]
I am currently investigating options for working with the canvas in a new HTML 5 application, and was wondering what is the current state of the art in HTML canvas JavaScript libraries and frameworks?
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Can you determine if Chrome is in incognito mode via a script?
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* Edit; the following no longer works in Chrome: *
Yes. The FileSystem API is disabled in incognito mode. Check out https://jsfiddle.net/w49x9f1a/ when you are and aren't in incognito mode.
Sample code:
var fs = window.RequestFileSystem || window.webki...
Options, Settings, Properties, Configuration, Preferences — when and why?
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Tricky, this, as there's no one single consistent style followed by all applications. As you say they are (broadly) synonyms.
In truth it doesn't really matter so long as your expected audience understands what you mean.
The bi...
SQL to find the number of distinct values in a column
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You can use the DISTINCT keyword within the COUNT aggregate function:
SELECT COUNT(DISTINCT column_name) AS some_alias FROM table_name
This will count only the distinct values for that column.
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Best/Most Comprehensive API for Stocks/Financial Data [closed]
What is the most recommended free/public API for accessing financial market stats and stock quotes (preferrably real-time quotes)? I'm not too picky about how it's exposed (SOAP, REST, some proprietary XML setup, etc.), as long as it's got some decent documentation.
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Where are the PostgreSQL logs on macOS?
I would like to take a look at the PostgreSQL log files to see what my app writes to them but I can't find them.
8 Answers
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How to loop through a plain JavaScript object with the objects as members?
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for (var key in validation_messages) {
// skip loop if the property is from prototype
if (!validation_messages.hasOwnProperty(key)) continue;
var obj = validation_messages[key];
for (var prop in obj) {
// skip...