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data.table vs dplyr: can one do something well the other can't or does poorly?
I'm relatively familiar with data.table , not so much with dplyr . I've read through some dplyr vignettes and examples that have popped up on SO, and so far my conclusions are that:
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In c# what does 'where T : class' mean?
...follow
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edited Sep 24 '10 at 12:47
answered Sep 24 '10 at 11:56
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Spring vs EJB. Can Spring replace EJB? [closed]
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Spring was developed as an alternative to EJB right from its inception, so the answer is of course you can use Spring in place of EJBs.
If there's an "advantage" to using EJBs, I'd say that it would depend on the skills of your team. If you have no Spring expertise, and lots of E...
Return anonymous type results?
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I tend to go for this pattern:
public class DogWithBreed
{
public Dog Dog { get; set; }
public string BreedName { get; set; }
}
public IQueryable<DogWithBreed> GetDogsWithBreedNames()
{
var db = new DogDataContext(ConnectString);
var result = from d...
What is the cleanest way to ssh and run multiple commands in Bash?
...e comments, you may be able to (depending what you're doing on the remote site) get away with replacing the first line with
ssh otherhost /bin/bash << EOF
Note that you can do variable substitution in the Here document, but you may have to deal with quoting issues. For instance, if you quot...
'App not Installed' Error on Android
...ator. Every now and again I have been creating a signed .apk and exporting it to my HTC Desire to test. It has all been fine.
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Python in Xcode 4+?
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I figured it out! The steps make it look like it will take more effort than it actually does.
These instructions are for creating a project from scratch. If you have existing Python scripts that you wish to include in this project, yo...
Exception thrown inside catch block - will it be caught again?
...e.getClass()); } and the code in try block generates IO Exception, Will it go to the immediate general Exception block or it will fly over to IOException catch block ?
– sofs1
Aug 22 '16 at 23:25
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Where does the iPhone Simulator store its data?
I have a SQLite DB that I'm using to store app data, and I could do with taking a look inside it to debug a problem I'm having - but where does the iPhone Simulator store its data, typically?
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Is floating point math broken?
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Binary floating point math is like this. In most programming languages, it is based on the IEEE 754 standard. The crux of the problem is that numbers are represented in this format as a whole number times a power of two; rational numbers (such as 0.1, which is 1/10) whose denominator is not a pow...