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Reshaping data.frame from wide to long format
...UE)
library(reshape)
x2 <- melt(x, id = c("Code", "Country"), variable_name = "Year")
x2[,"Year"] <- as.numeric(gsub("X", "" , x2[,"Year"]))
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C/C++ maximum stack size of program
...
Yes, or in STL-lingo use a std::deque with pop_front/push_back
– Andreas Brinck
Dec 1 '09 at 15:07
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How can I upload files asynchronously?
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Can I then use $_FILES in the upload.php?
– Alessandro Cosentino
Nov 2 '12 at 13:41
73
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How to build Qt for Visual Studio 2010
.../www.slicer.org/slicerWiki/index.php/Documentation/Nightly/Developers/Build_Instructions/Prerequisites/Qt#Windows_3
2)http://eecs.vanderbilt.edu/research/hmtl/wp/index.php/qt-vs/
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Modify request parameter with servlet filter
...r extends Filter {
public static final ThreadLocal<String> THREAD_VARIABLE = new ThreadLocal<>();
public void doFilter(HttpServletRequest request, HttpServletResponse response, FilterChain chain) {
THREAD_VARIABLE.set("myVariableValue");
chain.doFilter(request, re...
A html space is showing as %2520 instead of %20
... either interpret or don't interpret the link?
– AleX_
Mar 14 '17 at 17:55
I have http://mysite/test & that... If ...
Add a background image to shape in XML Android
...t;/shape>
</item>
<item android:drawable="@drawable/image_name_here" />
</layer-list>
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...
What is the difference between currying and partial application?
...lambda(accum,e){e+accum}))(0);
function length = curry(fold)(lambda(accum,_){1+accum})(empty-list);
function reverse = curry(fold)(lambda(accum,e){concat(e,accum)})(empty-list);
/* ... */
@list = [1, 2, 3, 4]
sum(list) //returns 10
@f = fold(lambda(accum,e){e+accum}) //f = lambda(accumulator,list)...
LINQPad [extension] methods [closed]
...tents replaced.
NOTE! Remember to .Dump() the DumpContainer itself in the appropriate spot.
To use:
var dc = new DumpContainer();
dc.Content = "Test";
// further down in the code
dc.Content = "Another test";
OnDemand is an extension method that will not output the contents of its parameter to t...
How to emulate C array initialization “int arr[] = { e1, e2, e3, … }” behaviour with std::array?
...
Best I can think of is:
template<class T, class... Tail>
auto make_array(T head, Tail... tail) -> std::array<T, 1 + sizeof...(Tail)>
{
std::array<T, 1 + sizeof...(Tail)> a = { head, tail ... };
return a;
}
auto a = make_array(1, 2, 3);
However, this requires the ...