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Test if a vector contains a given element
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Both the match() (returns the first appearance) and %in% (returns a Boolean) functions are designed for this.
v <- c('a','b','c','e')
'b' %in% v
## returns TRUE
match('b',v)
## returns the first location of 'b', in this case: 2
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How do you avoid over-populating the PATH Environment Variable in Windows?
...ur system. For example I have almost everything accessible through the command line, but now I come to the limit of the path string, so i can't add any more dir.
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Performance of static methods vs instance methods
...g to the performance characteristics of static methods vs instance methods and their scalability. Assume for this scenario that all class definitions are in a single assembly and that multiple discrete pointer types are required.
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How to use Python's pip to download and keep the zipped files for a package?
If I want to use the pip command to download a package (and its dependencies), but keep all of the zipped files that get downloaded (say, django-socialregistration.tar.gz) - is there a way to do that?
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C# vs Java generics [duplicate]
... implementation. In that the syntax looks similar, what is it that is substandard about the Java implementation, or is it a religious point of view?
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How to remove illegal characters from path and filenames?
I need a robust and simple way to remove illegal path and file characters from a simple string. I've used the below code but it doesn't seem to do anything, what am I missing?
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What is an xs:NCName type and when should it be used?
I ran one of my xml files through a schema generator and everything generated was what was expected, with the exception of one node:
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dyld: Library not loaded: /usr/local/lib/libpng16.16.dylib with anything php related
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Thank you, I uninstalled and re-installed homebrew completely but retrospect I think this would have been a better option.
– user3458861
Mar 26 '14 at 9:03
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When to choose mouseover() and hover() function?
What are the differences between jQuery .mouseover() and .hover() functions? If they are totally same why jQuery uses both?
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How does “do something OR DIE()” work in PHP?
I'm writing a php app to access a MySQL database, and on a tutorial, it says something of the form
4 Answers
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