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Better explanation of when to use Imports/Depends

...ound in both the gam and mgcv packages. If two other packages were loaded, one of them depending on gam and one depending on mgcv, the function found by calls to gam() would depend on the order in which they those two packages were attached. Not good. An "Imports" directive should be used for any s...
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Select first 4 rows of a data.frame in R

... This also works if you want the first four rows from just one column. To get the first four response values: df[1:4, "Response"]. – Iain Samuel McLean Elder Mar 14 '14 at 1:04 ...
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Removing viewcontrollers from navigation stack

...ack again, it shows 3 with the title of 3 – Radu Simionescu Sep 15 '15 at 9:30 ...
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Where are static variables stored in C and C++?

...a program is loaded into memory, it’s organized into different segments. One of the segment is DATA segment. The Data segment is further sub-divided into two parts: Initialized data segment: All the global, static and constant data are stored here. Uninitialized data segment(BSS): All the unin...
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Remove blank lines with grep

... instance your regular expression matches the beginning of the string then one or more spaces using the POSIX standard then the end of the string, i.e. with grep -v it removes all lines that are only spaces. Right? What happens if there are no spaces; it's simply a newline character? ...
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Python executable not finding libpython shared library

... Just a note for anyone trying this: It's just "/usr/local/lib", and not a starting "include" as the original "include ld.so.conf.d/*.conf". – timss Feb 18 '13 at 22:58 ...
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Undefined symbols for architecture i386: _OBJC_CLASS_$_SKPSMTPMessage", referenced from: error

... Both this answer and Allen's one helped me. I really had to check both things: Compile Sources and Build Active Architecture Only. Thanks a lot guys! – Bogdan Jul 3 '12 at 19:45 ...
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Remove array element based on object property

... One possibility: myArray = myArray.filter(function( obj ) { return obj.field !== 'money'; }); Please note that filter creates a new array. Any other variables referring to the original array would not get the filtered ...
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Is it better to specify source files with GLOB or each file individually in CMake?

CMake offers several ways to specify the source files for a target. One is to use globbing ( documentation ), for example: ...
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What's the point of JAXB 2's ObjectFactory classes?

...ibility isn't the only reason. :-P With more complicated schemas, such as ones that have complicated constraints on the values that an element's contents can take on, sometimes you need to create actual JAXBElement objects. They are not usually trivial to create by hand, so the create* methods do t...