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Expert R users, what's in your .Rprofile? [closed]

... Here are two functions I find handy for working with windows. The first converts the \s to /. .repath <- function() { cat('Paste windows file path and hit RETURN twice') x <- scan(what = "") xa <- gsub('\\\\', '/', x) writeClipboard(paste(xa, collapse=" ")) cat('Here\'s y...
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C# operator overload for `+=`?

... think this is because there will be an effect for the Garbage collection and memory management, which is a potential security hole in CLR strong typed world. Nevertheless, let's see what exactly an operator is. According to the famous Jeffrey Richter's book, each programming language has its own ...
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How to find the type of an object in Go?

... following snippet will print out the reflection type of a string, integer and float. package main import ( "fmt" "reflect" ) func main() { tst := "string" tst2 := 10 tst3 := 1.2 fmt.Println(reflect.TypeOf(tst)) fmt.Println(reflect.TypeOf(tst2)) fmt.Println(refle...
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How can I get nth element from a list?

...d have. So I think the idea was to allows it for edge cases, but make it stand out as non-idiomatic. – cdosborn Sep 26 '16 at 20:04 3 ...
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C# Iterating through an enum? (Indexing a System.Array)

... edited Nov 20 '15 at 20:34 Anders 10.7k3333 gold badges8888 silver badges139139 bronze badges answered Jan 27 '09 at 9:16 ...
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Why can't variables be declared in a switch statement?

... switch statement? In C++ you can declare variables pretty much anywhere (and declaring them close to first use is obviously a good thing) but the following still won't work: ...
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How to check if all list items have the same value and return it, or return an “otherValue” if they

..., otherwise I need to use an “otherValue”. I can’t think of a simple and clear way of doing this. 9 Answers ...
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How do I create an empty array/matrix in NumPy?

...might be best off to keep it in a list until it is finished, and only then convert it into an array. e.g. mylist = [] for item in data: mylist.append(item) mat = numpy.array(mylist) item can be a list, an array or any iterable, as long as each item has the same number of elements. In this ...
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Quicksort vs heapsort

Both quicksort and heapsort do in-place sorting. Which is better? What are the applications and cases in which either is preferred? ...
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Android - get children inside a View?

... answered Dec 6 '11 at 4:13 Alexander KulyakhtinAlexander Kulyakhtin 45.6k3232 gold badges101101 silver badges153153 bronze badges ...