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Is 161803398 A 'Special' Number? Inside of Math.Random()
...ator (instead of some magical property of phi).
– David Eisenstat
May 15 '14 at 21:09
7
...
How can I create a correlation matrix in R?
..., y=seq(dim(y)[2]), z=COR, xlab="x column", ylab="y column")
text(expand.grid(x=seq(dim(x)[2]), y=seq(dim(y)[2])), labels=round(c(COR),2))
Edit:
Here is an example of custom row and column labels on a correlation matrix calculated with a single matrix:
png("corplot.png", width=5, height=5, units="...
How to subtract a day from a date?
... Python datetime object is timezone-aware than you should be careful to avoid errors around DST transitions (or changes in UTC offset for other reasons):
from datetime import datetime, timedelta
from tzlocal import get_localzone # pip install tzlocal
DAY = timedelta(1)
local_tz = get_localzone() ...
How to make overlay control above all other controls?
...
If you are using a Canvas or Grid in your layout, give the control to be put on top a higher ZIndex.
From MSDN:
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" WindowTitle="ZIndex Sample">
<Canvas>
<Rectangle ...
How do I edit an existing tag message in git?
...
The <tag name>^{} thing didn't work for me. After some searching I determined that this is a Windows thing: cmd.exe uses ^ as a shell escape, so you need to double it up.
– Karl Knechtel
Aug 13 at 16:13
...
What is scope/named_scope in rails?
... possible you meant scope :recent, -> { order(created_at: :desc) } ? apidock.com/rails/v4.2.9/ActiveRecord/QueryMethods/order
– notapatch
Jul 18 '19 at 15:09
...
.htaccess mod_rewrite - how to exclude directory from rewrite rule
... +1 ~ .htaccess operates hierarchically, so local folders override their parents, just like a normal cascade in CSS or MVC.
– Atari
Oct 30 '13 at 18:12
4
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How can I use grep to show just filenames on Linux?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
throw new std::exception vs throw std::exception
...ime.
Throwing a pointer to a dynamically allocated object is never a good idea. Exceptions are supposed to enable you to write more robust code in the face of error conditions. If you throw an exception object in the conventional manner you can be sure that whether it is caught by a catch clause na...
How to set the style -webkit-transform dynamically using JavaScript?
...function(){
x += 1;
y += 1;
var element = document.getElementById('cube');
element.style.webkitTransform = "translateZ(-100px) rotateY("+x+"deg) rotateX("+y+"deg)"; //for safari and chrome
element.style.MozTransform = "translateZ(-100px) rotateY("+x+"deg) rotateX("+y+"deg)"; //fo...