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Check for installed packages before running install.packages() [duplicate]
I have an R script that is shared with several users on different computers. One of its lines contains the install.packages("xtable") command.
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How is “mvn clean install” different from “mvn install”?
What is the difference between mvn clean install and mvn install ?
5 Answers
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What is the difference between an ORM and an ODM?
I am trying to figure out what the difference is between ORM and ODM, as far as I understand the concept, ORM (Object Relational Mapper) maps the relations between data, where as ODM (Object Document Mapper) deals with documents. Am I right in assuming that mySQL is an example of ORM and MongoDB is ...
Attach to a processes output for viewing
...and detached, but are nominally meant only to be used by the same user, so if you want to share them between users, it's a big pain in the ass.
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Tab space instead of multiple non-breaking spaces (“nbsp”)?
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@AlexV - If you uses em as the dimension, as I did, it should expand with the text size. Even if you don't, it will depend on the nature of the zoom mechanism used.
– Alohci
Jun 16 '11 at 15:39
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LINQ to Entities case sensitive comparison
...ter that it gets filtered again on the client case sensitively. Of course, if you happen to have thousands of entries that match case insensitive, but only one of them is the correct one case sensitive, then it's a lot of overhead. But I don't think that reality will present such scenarios... :)
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How to debug Angular JavaScript Code
...e all heads in on the next AngularJS 2.0 release. Look into the ng-inspect if Batarang is giving you headaches.
– demisx
Nov 6 '14 at 16:08
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Unit tests vs Functional tests
What is the difference between unit tests and functional tests? Can a unit test also test a function?
14 Answers
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Node.js Logging
...gger for connect/express servers
Configurable log message layout/patterns
Different log levels for different log categories (make some parts
of your app log as DEBUG, others only ERRORS, etc.)
Example:
Installation: npm install log4js
Configuration (./config/log4js.json):
{"appenders": [
{...
What are MVP and MVC and what is the difference?
...play in response to any action including when the application loads. This differs from MVP where actions route through the View to the Presenter. In MVC, every action in the View correlates with a call to a Controller along with an action. In the web, each action involves a call to a URL on the othe...