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Read an Excel file directly from a R script

...e gdata package works most of the time (although you need to have Perl installed on your system -- usually already true on MacOS and Linux, but takes an extra step on Windows, i.e. see http://strawberryperl.com/). There are various caveats, and alternatives, listed on the R wiki page. The only reas...
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What exactly are DLL files, and how do they work?

... files, ...) that an EXE, or other DLL uses. Types of libraries: On virtually all operating systems, there are 2 types of libraries. Static libraries and dynamic libraries. In windows the file extensions are as follows: Static libraries (.lib) and dynamic libraries (.dll). The main difference i...
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jQuery Set Select Index

... option:eq(3)').prop('selected', true); // To select via value Thanks for the comment, .get won't work since it returns a DOM element, not a jQuery one. Keep in mind the .eq function can be used outside of the selector as well if you prefer. $('#selectBox option').eq(3).prop('selected', true);...
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Throw an error in a MySQL trigger

...e SIGNAL syntax to throw an exception: signal sqlstate '45000' set message_text = 'My Error Message'; State 45000 is a generic state representing "unhandled user-defined exception". Here is a more complete example of the approach: delimiter // use test// create table trigger_test ( id int...
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How to create a date object from string in javascript [duplicate]

...return a JS Date object, with a robust selection of methods available from __proto__. Demo in jsFiddle – KyleMit Apr 11 '17 at 19:19 4 ...
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How to determine programmatically whether a particular process is 32-bit or 64-bit

... One of the more interesting ways I've seen is this: if (IntPtr.Size == 4) { // 32-bit } else if (IntPtr.Size == 8) { // 64-bit } else { // The future is now! } To find out if OTHER processes are running in the 64-bi...
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Node.js/Express.js App Only Works on Port 3000

...js app running on my server that only works on port 3000 and I'm trying to figure out why. Here's what I've found: 16 Answe...
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node.js: read a text file into an array. (Each line an item in the array.)

...oids the mentioned substring (tested on a file several megabytes worth of "All work and no play makes Jack a dull boy"): function readLines(input, func) { var remaining = ''; input.on('data', function(data) { remaining += data; var index = remaining.indexOf('\n'); var last = 0; ...
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Javascript fuzzy search that makes sense

...oth strings. Jaccard distance: 1 minues the quotient of shared N-grams and all observed N-grams. Maybe you could use a weighted combination (or minimum) of these metrics, with Levenshtein -- common substring, common N-gram or Jaccard will all strongly prefer similar strings -- or perhaps try just ...
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Using Java to find substring of a bigger string using Regular Expression

... You should be able to use non-greedy quantifiers, specifically *?. You're going to probably want the following: Pattern MY_PATTERN = Pattern.compile("\\[(.*?)\\]"); This will give you a pattern that will match your string and put the text within the square brackets in the first ...