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How to prevent ifelse() from turning Date objects into numeric objects
..._new),as.character(dates)))
This wouldn't require any library apart from base R.
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Choosing a stand-alone full-text search server: Sphinx or SOLR? [closed]
... of Lucene, which is a proven technology over 8 years old with a huge user base (this is only a small part). Whenever Lucene gets a new feature or speedup, Solr gets it too. Many of the devs committing to Solr are also Lucene committers.
Sphinx integrates more tightly with RDBMSs, especially MySQL.
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How long is the SHA256 hash?
...t I don't know how long to make my VARCHAR when setting up the MySQL database. What is a good length?
5 Answers
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Exposing database IDs - security risk?
I've heard that exposing database IDs (in URLs, for example) is a security risk, but I'm having trouble understanding why.
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Vim 80 column layout concerns
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You can even automatically base the value of 'colorcolumn' on 'textwidth' with something like :set cc=+1
– graywh
Oct 1 '10 at 16:37
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How do I get the directory that a program is running from?
...t argc, char* argv[])
{
std::string argv_str(argv[0]);
std::string base = argv_str.substr(0, argv_str.find_last_of("/"));
}
You can now just use this as a base for your relative path. So for example I have this directory structure:
main
----> test
----> src
----> bin
and...
How do popular apps authenticate user requests from their mobile app to their server?
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I imagine they use a "token" based security system, so the password is actually never stored anywhere, just used the first time to authenticate. So the app initially posts the username/password (over ssl) and the server returns a token that the app store...
Django: “projects” vs “apps”
...hat everything, templates included, allows you to include from some common base means your blog should fit snugly into any other setup, simply by looking after its own part.
However, to address your actual concern, yes, nothing says you can't work with the top level project folder. That's what apps...
libxml install error using pip
...talled **
From the lxml documentation, assuming you are running a Debian-based distribution :
sudo apt-get install libxml2-dev libxslt-dev python-dev
For Debian based systems, it should be enough to install the known build dependencies of python-lxml or python3-lxml, e.g.
sudo apt-get build-de...
What does 'super' do in Python?
...ritance are minimal -- mostly, you don't have to hard-code the name of the base class into every method that uses its parent methods.
However, it's almost impossible to use multiple-inheritance without super(). This includes common idioms like mixins, interfaces, abstract classes, etc. This extends...