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How to wait for a keypress in R?
...i = ui, server = server))
print("He waited for you to press the button in order to print this")
To my experience, this has a unique characteristic: even if you ran a script that had code written following the runApp function, it will not run until you've pressed the button in the app (button tha...
How do I read / convert an InputStream into a String in Java?
...Utils)
String result = IOUtils.toString(inputStream, StandardCharsets.UTF_8);
Using CharStreams (Guava)
String result = CharStreams.toString(new InputStreamReader(
inputStream, Charsets.UTF_8));
Using Scanner (JDK)
Scanner s = new Scanner(inputStream).useDelimiter("\\A");
String result...
Force R to stop plotting abbreviated axis labels - e.g. 1e+00 in ggplot2
...ayed, as opposed to scales::comma which only does comma separations of the orders of magnitude.
For example:
require(ggplot2)
require(scales)
df <- data.frame(x=seq(1, 1e9, length.out=100), y=sample(100))
# Here we define spaces as the big separator
point <- format_format(big.mark = " ", de...
Java SafeVarargs annotation, does a standard or best practice exist?
... }
}
The problem here is that we depend on the type of args to be T[] in order to return it as T[]. But actually the type of the argument at runtime is not an instance of T[].
3) If your method has an argument of type T... (where T is any type parameter), then:
Safe: If your method only depends...
Nullable type issue with ?: Conditional Operator
..., by using default, you do not need to specify the variable as nullable in order to assign it a null value. The compiler will auto-assign the specific variable-type's default value and no error will be encountered. Example:
DateTime foo;
foo = true ? default(DateTime) : new DateTime(0);
...
How do I call a dynamically-named method in Javascript?
I am working on dynamically creating some JavaScript that will be inserted into a web page as it's being constructed.
9 An...
How to correctly close a feature branch in Mercurial?
...ant to merge results back to the default branch and close feature-x in order to get rid of it in the output of hg branches .
...
Create a matrix of scatterplots (pairs() equivalent) in ggplot2
...
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What is the difference between screenX/Y, clientX/Y and pageX/Y?
...upper left. This point could be anywhere in the browser window and can actually change location if there are embedded scrollable pages embedded within pages and the user moves a scrollbar.
screenX and screenY:
Relative to the top left of the physical screen/monitor, this reference point only moves ...
Why is a 3-way merge advantageous over a 2-way merge?
...e to the original), why can't it apply both changes serially in increasing order of files' timestamps? That is: It starts off with my friend's committed copy taking it to be the (new) original (with the line addition at the top) and then, on top of it, applies my local changes (line deletion at the ...